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Version5.0
StatusDetected and Quantified
Creation Date2006-02-28 17:19:06 UTC
Update Date2023-02-21 17:15:55 UTC
HMDB IDHMDB0001890
Secondary Accession Numbers
  • HMDB01890
Metabolite Identification
Common NameAcetylcysteine
DescriptionN-Acetyl-L-cysteine (NAC) or N-Acetylcysteine is the N-acetyl derivative of the amino acid L-cysteine and is a precursor in the formation of the antioxidant glutathione in the body. N-Acetylcysteine, belongs to the class of organic compounds known as N-acyl-alpha amino acids. N-acyl-alpha amino acids are compounds containing an alpha amino acid which bears an acyl group at its terminal nitrogen atom. N-Acetyl-L-cysteine can also be classified as an alpha amino acid or a derivatized alpha amino acid. Technically, N-Acetyl-L-cysteine is a biologically available N-terminal capped form of the proteinogenic alpha amino acid L-cysteine. N-acetyl amino acids can be produced either via direct synthesis of specific N-acetyltransferases or via the proteolytic degradation of N-acetylated proteins by specific hydrolases. N-terminal acetylation of proteins is a widespread and highly conserved process in eukaryotes that is involved in protection and stability of proteins (PMID: 16465618 ). About 85% of all human proteins and 68% of all yeast proteins are acetylated at their N-terminus (PMID: 21750686 ). Several proteins from prokaryotes and archaea are also modified by N-terminal acetylation. The majority of eukaryotic N-terminal-acetylation reactions occur through N-acetyltransferase enzymes or NAT’s (PMID: 30054468 ). These enzymes consist of three main oligomeric complexes NatA, NatB, and NatC, which are composed of at least a unique catalytic subunit and one unique ribosomal anchor. The substrate specificities of different NAT enzymes are mainly determined by the identities of the first two N-terminal residues of the target protein. The human NatA complex co-translationally acetylates N-termini that bear a small amino acid (A, S, T, C, and occasionally V and G) (PMID: 30054468 ). NatA also exists in a monomeric state and can post-translationally acetylate acidic N-termini residues (D-, E-). NatB and NatC acetylate N-terminal methionine with further specificity determined by the identity of the second amino acid. . N-acetylated amino acids, such as N-acetylcysteine can be released by an N-acylpeptide hydrolase from peptides generated by proteolytic degradation (PMID: 16465618 ). In addition to the NAT enzymes and protein-based acetylation, N-acetylation of free cysteine can also occur. The enzyme known as cysteine-S-conjugate N-acetyltransferase (EC 2.3.1.80) catalyzes the transfer of the acetyl group of acetyl CoA to the amino group of cysteine. This enzyme is an important participant in glutathione metabolism and the production of glutathione. The thiol (sulfhydryl) group in N-Acetylcysteine confers antioxidant effects and is able to reduce free radicals. N-Acetylcysteine is a pharmacological agent used in the management of paracetamol (acetaminophen) overdoses. When acetaminophen is taken in large quantities, a minor metabolite called N-acetyl-p-benzoquinone imine (NAPQI) accumulates within the body. NAPQI is normally conjugated by glutathione, but when taken in excess, the body's glutathione reserves are not sufficient to deactivate the toxic NAPQI. In the treatment of acetaminophen overdose, N-acetylcysteine acts to maintain or replenish depleted glutathione reserves in the liver and enhance non-toxic metabolism of acetaminophen. These actions serve to protect liver cells from NAPQI toxicity. For this particular indication, N-acetylcysteine is available under the trade names Mucomyst (Bristol-Myers Squibb) and Parvolex (GSK). N-Acetylcysteine is also used as a mucolytic agent to reduce the viscosity of mucous secretions. It has also been shown to have antiviral effects in patients with HIV due to inhibition of viral stimulation by reactive oxygen intermediates. Acetylcysteine has been studied for a number of psychiatric disorders. There is tentative evidence for N-acetylcysteine being useful in the treatment of Alzheimer's disease, autism, bipolar disorder, drug-induced neuropathy, major depressive disorder, obsessive-compulsive disorder, and schizophrenia (PMID: 21118657 ). Many N-acetylamino acids, including N-acetylcysteine, can act as uremic toxins if present in high abundance in the serum or plasma (PMID: 21970774 ; PMID: 20613759 ). Uremic toxins are a diverse group of endogenously produced molecules that, if not properly cleared or eliminated by the kidneys, can cause kidney damage, cardiovascular disease and neurological deficits (PMID: 18287557 ).
Structure
Data?1676999755
Synonyms
ValueSource
(2R)-2-Acetylamino-3-sulfanylpropanoic acidChEBI
(R)-2-Acetylamino-3-mercaptopropanoic acidChEBI
(R)-Mercapturic acidChEBI
AcetilcisteinaChEBI
AcetylcysteinumChEBI
L-AcetylcysteineChEBI
L-alpha-Acetamido-beta-mercaptopropionic acidChEBI
Mercapturic acidChEBI
N-Acetyl-L-(+)-cysteineChEBI
N-AcetylcysteineChEBI
NACChEBI
(2R)-2-Acetylamino-3-sulfanylpropanoateGenerator
(2R)-2-Acetylamino-3-sulphanylpropanoateGenerator
(2R)-2-Acetylamino-3-sulphanylpropanoic acidGenerator
(R)-2-Acetylamino-3-mercaptopropanoateGenerator
(R)-MercaptateGenerator
(R)-Mercaptic acidGenerator
L-a-Acetamido-b-mercaptopropionateGenerator
L-a-Acetamido-b-mercaptopropionic acidGenerator
L-alpha-Acetamido-beta-mercaptopropionateGenerator
L-Α-acetamido-β-mercaptopropionateGenerator
L-Α-acetamido-β-mercaptopropionic acidGenerator
MercaptateGenerator
Mercaptic acidGenerator
AcetadoteHMDB
FlumucetinHMDB
2-acetylamino-3-mercapto-PropionateHMDB
2-acetylamino-3-mercapto-Propionic acidHMDB
Fluimicil infantilHMDB
FluimucetinHMDB
FluprowitHMDB, MeSH
N-Acety-L-cysteineHMDB
N-Acetyl-3-mercaptoalanineHMDB
Sodium 2-acetamido-3-mercaptopropionateHMDB
AcemucMeSH, HMDB
Acetylcysteine alcon brandMeSH, HMDB
Acetylcysteine betapharm brandMeSH, HMDB
Acetylcysteine bouchara brandMeSH, HMDB
Acetylcysteine farmasan brandMeSH, HMDB
Acetylcysteine fresenius brandMeSH, HMDB
Acetylcysteine inpharzam brandMeSH, HMDB
Acetylcysteine klinge brandMeSH, HMDB
Acetylcysteine lindopharm brandMeSH, HMDB
Acetylcysteine pharbita brandMeSH, HMDB
Acetylcysteine whitehall brandMeSH, HMDB
Acetylcysteine, monosodium saltMeSH, HMDB
Acétylcystéine GNRMeSH, HMDB
Allen and hanburys brand OF acetylcysteineMeSH, HMDB
Bioiberica brand OF acetylcysteineMeSH, HMDB
Bristol myers squibb brand OF acetylcysteineMeSH, HMDB
BromucMeSH, HMDB
Dey brand OF acetylcysteine sodium saltMeSH, HMDB
EurespiranMeSH, HMDB
ExomucMeSH, HMDB
Fresenius brand OF acetylcysteineMeSH, HMDB
GNR Pharma brand OF acetylcysteineMeSH, HMDB
GNR-Pharma brand OF acetylcysteineMeSH, HMDB
GenacMeSH, HMDB
Génévrier brand OF acetylcysteineMeSH, HMDB
Hermes brand OF acetylcysteineMeSH, HMDB
Heumann brand OF acetylcysteineMeSH, HMDB
Monosodium salt acetylcysteineMeSH, HMDB
MucosilMeSH, HMDB
NAC alMeSH, HMDB
NAC, bisolvonMeSH, HMDB
Oberlin brand OF acetylcysteineMeSH, HMDB
Pfleger brand OF acetylcysteineMeSH, HMDB
Produpharm lappe brand OF acetylcysteineMeSH, HMDB
Roberts brand OF acetylcysteineMeSH, HMDB
Roche nicholas brand OF acetylcysteineMeSH, HMDB
SiranMeSH, HMDB
Sodium, acetylcysteineMeSH, HMDB
Temmler brand OF acetylcysteineMeSH, HMDB
Teva brand OF acetylcysteineMeSH, HMDB
Zambon brand OF acetylcysteineMeSH, HMDB
Zambon, nacMeSH, HMDB
Acetylcystein atidMeSH, HMDB
Acetylcystein, mentopinMeSH, HMDB
Acetylcysteine azupharma brandMeSH, HMDB
Acetylcysteine centrafarm brandMeSH, HMDB
Acetylcysteine hermes brandMeSH, HMDB
Acetylcysteine krewel brandMeSH, HMDB
Acetylcysteine temmler brandMeSH, HMDB
Acetylcysteine teva brandMeSH, HMDB
Acetylcysteine upsa brandMeSH, HMDB
Acetylcysteine zyma brandMeSH, HMDB
Acetylcysteine, (DL)-isomerMeSH, HMDB
Betapharm brand OF acetylcysteineMeSH, HMDB
Bristol myers squibb brand OF acetylcysteine sodium saltMeSH, HMDB
Disphar brand OF acetylcysteineMeSH, HMDB
Farmasan brand OF acetylcysteineMeSH, HMDB
FluimucilMeSH, HMDB
JenapharmMeSH, HMDB
Klinge brand OF acetylcysteineMeSH, HMDB
Lindopharm brand OF acetylcysteineMeSH, HMDB
MPectilMeSH, HMDB
Merck brand OF acetylcysteineMeSH, HMDB
MucosolMeSH, HMDB
NAC zambonMeSH, HMDB
SiccoralMeSH, HMDB
Trommsdorff brand OF acetylcysteineMeSH, HMDB
Zyma brand OF acetylcysteineMeSH, HMDB
Mentopin acetylcysteinMeSH, HMDB
Acetylcystein alMeSH, HMDB
Acetylcystein heumannMeSH, HMDB
Acetylcystein tromMeSH, HMDB
Acetylcysteine aluid brandMeSH, HMDB
Acetylcysteine disphar brandMeSH, HMDB
Acetylcysteine GNR-pharma brandMeSH, HMDB
Acetylcysteine lichtenstein brandMeSH, HMDB
Acetylcysteine merck brandMeSH, HMDB
Acetylcysteine oberlin brandMeSH, HMDB
Acetylcysteine roberts brandMeSH, HMDB
Acetylcysteine sodiumMeSH, HMDB
Acetylcysteine thiemann brandMeSH, HMDB
Acetylcysteine zincMeSH, HMDB
Acetylcysteine, monoammonium saltMeSH, HMDB
AcetystMeSH, HMDB
Acid, mercapturicMeSH, HMDB
AirbronMeSH, HMDB
Alcon brand OF acetylcysteineMeSH, HMDB
Aluid brand OF acetylcysteineMeSH, HMDB
AlveolexMeSH, HMDB
Atid brand OF acetylcysteineMeSH, HMDB
AzubronchinMeSH, HMDB
Boehringer ingelheim brand OF acetylcysteineMeSH, HMDB
Bristol-myers squibb brand OF acetylcysteine sodium saltMeSH, HMDB
broncho FipsMeSH, HMDB
BroncholysinMeSH, HMDB
Centrafarm brand OF acetylcysteineMeSH, HMDB
CodotussylMeSH, HMDB
CystamucilMeSH, HMDB
dampo MucopectMeSH, HMDB
HoestilMeSH, HMDB
Hustengetränk, optipectMeSH, HMDB
Inpharzam brand OF acetylcysteineMeSH, HMDB
Intra brand OF acetylcysteineMeSH, HMDB
Larylin nacMeSH, HMDB
LindocetylMeSH, HMDB
m PectilMeSH, HMDB
Mucopect, dampoMeSH, HMDB
MucosolvinMeSH, HMDB
Optipect hustengetränkMeSH, HMDB
Sanigen, mucoMeSH, HMDB
SolmucolMeSH, HMDB
Thiemann brand OF acetylcysteineMeSH, HMDB
Whitehall brand OF acetylcysteineMeSH, HMDB
Zinc, acetylcysteineMeSH, HMDB
AcebrausMeSH, HMDB
DurabronchalMeSH, HMDB
AcetabsMeSH, HMDB
Acetylcysteine atid brandMeSH, HMDB
Acetylcysteine bioiberica brandMeSH, HMDB
Acetylcysteine guerbet brandMeSH, HMDB
Acetylcysteine génévrier brandMeSH, HMDB
Acetylcysteine heumann brandMeSH, HMDB
Acetylcysteine hydrochlorideMeSH, HMDB
Acetylcysteine intra brandMeSH, HMDB
Acetylcysteine pfleger brandMeSH, HMDB
Acetylcysteine trommsdorff brandMeSH, HMDB
Acetylcysteine zambon brandMeSH, HMDB
Acetylcysteine ac-pharma brandMeSH, HMDB
Acetylcysteine, (D)-isomerMeSH, HMDB
AcetylinMeSH, HMDB
Azupharma brand OF acetylcysteineMeSH, HMDB
Bisolvon nacMeSH, HMDB
Bouchara brand OF acetylcysteineMeSH, HMDB
Bristol-myers squibb brand OF acetylcysteineMeSH, HMDB
broncho-FipsMeSH, HMDB
BronchoFipsMeSH, HMDB
BroncoclarMeSH, HMDB
FabrolMeSH, HMDB
FrekatussMeSH, HMDB
Guerbet brand OF acetylcysteineMeSH, HMDB
Hydrochloride, acetylcysteineMeSH, HMDB
IlubeMeSH, HMDB
JenacysteinMeSH, HMDB
Krewel brand OF acetylcysteineMeSH, HMDB
LantamedMeSH, HMDB
Lichtenstein brand OF acetylcysteineMeSH, HMDB
m-PectilMeSH, HMDB
Monoammonium salt acetylcysteineMeSH, HMDB
MuciteranMeSH, HMDB
muco SanigenMeSH, HMDB
MucomystMeSH, HMDB
N Acetyl L cysteineMeSH, HMDB
N AcetylcysteineMeSH, HMDB
Pharbita brand OF acetylcysteineMeSH, HMDB
UPSA brand OF acetylcysteineMeSH, HMDB
Ac pharma brand OF acetylcysteineMeSH, HMDB
Ac-pharma brand OF acetylcysteineMeSH, HMDB
AcetylcysteineChEBI
Chemical FormulaC5H9NO3S
Average Molecular Weight163.195
Monoisotopic Molecular Weight163.030313849
IUPAC Name(2R)-2-acetamido-3-sulfanylpropanoic acid
Traditional Nameacetylcysteine
CAS Registry Number616-91-1
SMILES
CC(=O)N[C@@H](CS)C(O)=O
InChI Identifier
InChI=1S/C5H9NO3S/c1-3(7)6-4(2-10)5(8)9/h4,10H,2H2,1H3,(H,6,7)(H,8,9)/t4-/m0/s1
InChI KeyPWKSKIMOESPYIA-BYPYZUCNSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as n-acyl-l-alpha-amino acids. These are n-acylated alpha amino acids which have the L-configuration of the alpha-carbon atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentN-acyl-L-alpha-amino acids
Alternative Parents
Substituents
  • N-acyl-l-alpha-amino acid
  • Cysteine or derivatives
  • Acetamide
  • Carboxamide group
  • Secondary carboxylic acid amide
  • Alkylthiol
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Hydrocarbon derivative
  • Organic oxygen compound
  • Organic nitrogen compound
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • Organopnictogen compound
  • Organic oxide
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point109.5 °CNot Available
Boiling Point407.00 to 408.00 °C. @ 760.00 mm Hg (est)The Good Scents Company Information System
Water Solubility242900 mg/L @ 25 °C (est)The Good Scents Company Information System
LogP-0.696 (est)The Good Scents Company Information System
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility5.09 g/LALOGPS
logP-0.03ALOGPS
logP-0.71ChemAxon
logS-1.5ALOGPS
pKa (Strongest Acidic)3.82ChemAxon
pKa (Strongest Basic)-2ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area66.4 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity37.67 m³·mol⁻¹ChemAxon
Polarizability15.34 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+135.77531661259
DarkChem[M-H]-131.75331661259
AllCCS[M+H]+136.97132859911
AllCCS[M-H]-132.20432859911
DeepCCS[M+H]+131.5330932474
DeepCCS[M-H]-127.70330932474
DeepCCS[M-2H]-164.87130932474
DeepCCS[M+Na]+140.4130932474
AllCCS[M+H]+137.032859911
AllCCS[M+H-H2O]+133.132859911
AllCCS[M+NH4]+140.632859911
AllCCS[M+Na]+141.632859911
AllCCS[M-H]-132.232859911
AllCCS[M+Na-2H]-134.632859911
AllCCS[M+HCOO]-137.332859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
AcetylcysteineCC(=O)N[C@@H](CS)C(O)=O2612.4Standard polar33892256
AcetylcysteineCC(=O)N[C@@H](CS)C(O)=O1494.3Standard non polar33892256
AcetylcysteineCC(=O)N[C@@H](CS)C(O)=O1700.2Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Acetylcysteine,1TMS,isomer #1CC(=O)N[C@@H](CS)C(=O)O[Si](C)(C)C1511.8Semi standard non polar33892256
Acetylcysteine,1TMS,isomer #2CC(=O)N[C@@H](CS[Si](C)(C)C)C(=O)O1586.8Semi standard non polar33892256
Acetylcysteine,1TMS,isomer #3CC(=O)N([C@@H](CS)C(=O)O)[Si](C)(C)C1540.1Semi standard non polar33892256
Acetylcysteine,2TMS,isomer #1CC(=O)N[C@@H](CS[Si](C)(C)C)C(=O)O[Si](C)(C)C1656.7Semi standard non polar33892256
Acetylcysteine,2TMS,isomer #1CC(=O)N[C@@H](CS[Si](C)(C)C)C(=O)O[Si](C)(C)C1650.1Standard non polar33892256
Acetylcysteine,2TMS,isomer #1CC(=O)N[C@@H](CS[Si](C)(C)C)C(=O)O[Si](C)(C)C2174.2Standard polar33892256
Acetylcysteine,2TMS,isomer #2CC(=O)N([C@@H](CS)C(=O)O[Si](C)(C)C)[Si](C)(C)C1520.8Semi standard non polar33892256
Acetylcysteine,2TMS,isomer #2CC(=O)N([C@@H](CS)C(=O)O[Si](C)(C)C)[Si](C)(C)C1573.2Standard non polar33892256
Acetylcysteine,2TMS,isomer #2CC(=O)N([C@@H](CS)C(=O)O[Si](C)(C)C)[Si](C)(C)C1876.1Standard polar33892256
Acetylcysteine,2TMS,isomer #3CC(=O)N([C@@H](CS[Si](C)(C)C)C(=O)O)[Si](C)(C)C1662.3Semi standard non polar33892256
Acetylcysteine,2TMS,isomer #3CC(=O)N([C@@H](CS[Si](C)(C)C)C(=O)O)[Si](C)(C)C1709.1Standard non polar33892256
Acetylcysteine,2TMS,isomer #3CC(=O)N([C@@H](CS[Si](C)(C)C)C(=O)O)[Si](C)(C)C2095.4Standard polar33892256
Acetylcysteine,3TMS,isomer #1CC(=O)N([C@@H](CS[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C1701.8Semi standard non polar33892256
Acetylcysteine,3TMS,isomer #1CC(=O)N([C@@H](CS[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C1727.5Standard non polar33892256
Acetylcysteine,3TMS,isomer #1CC(=O)N([C@@H](CS[Si](C)(C)C)C(=O)O[Si](C)(C)C)[Si](C)(C)C1829.5Standard polar33892256
Acetylcysteine,1TBDMS,isomer #1CC(=O)N[C@@H](CS)C(=O)O[Si](C)(C)C(C)(C)C1755.8Semi standard non polar33892256
Acetylcysteine,1TBDMS,isomer #2CC(=O)N[C@@H](CS[Si](C)(C)C(C)(C)C)C(=O)O1821.6Semi standard non polar33892256
Acetylcysteine,1TBDMS,isomer #3CC(=O)N([C@@H](CS)C(=O)O)[Si](C)(C)C(C)(C)C1816.7Semi standard non polar33892256
Acetylcysteine,2TBDMS,isomer #1CC(=O)N[C@@H](CS[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2098.7Semi standard non polar33892256
Acetylcysteine,2TBDMS,isomer #1CC(=O)N[C@@H](CS[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2113.1Standard non polar33892256
Acetylcysteine,2TBDMS,isomer #1CC(=O)N[C@@H](CS[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C2276.6Standard polar33892256
Acetylcysteine,2TBDMS,isomer #2CC(=O)N([C@@H](CS)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2021.2Semi standard non polar33892256
Acetylcysteine,2TBDMS,isomer #2CC(=O)N([C@@H](CS)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2043.4Standard non polar33892256
Acetylcysteine,2TBDMS,isomer #2CC(=O)N([C@@H](CS)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2112.7Standard polar33892256
Acetylcysteine,2TBDMS,isomer #3CC(=O)N([C@@H](CS[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C2155.9Semi standard non polar33892256
Acetylcysteine,2TBDMS,isomer #3CC(=O)N([C@@H](CS[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C2152.7Standard non polar33892256
Acetylcysteine,2TBDMS,isomer #3CC(=O)N([C@@H](CS[Si](C)(C)C(C)(C)C)C(=O)O)[Si](C)(C)C(C)(C)C2249.3Standard polar33892256
Acetylcysteine,3TBDMS,isomer #1CC(=O)N([C@@H](CS[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2390.9Semi standard non polar33892256
Acetylcysteine,3TBDMS,isomer #1CC(=O)N([C@@H](CS[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2390.6Standard non polar33892256
Acetylcysteine,3TBDMS,isomer #1CC(=O)N([C@@H](CS[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2242.7Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental GC-MSGC-MS Spectrum - Acetylcysteine GC-MS (3 TMS)splash10-0i00-2970000000-d817070e3a42f5e63ec52014-06-16HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - Acetylcysteine EI-B (Non-derivatized)splash10-01ox-9000000000-192b8907b32f1e180c722017-09-12HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - Acetylcysteine GC-MS (Non-derivatized)splash10-0i00-2970000000-d817070e3a42f5e63ec52017-09-12HMDB team, MONA, MassBankView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Acetylcysteine GC-MS (Non-derivatized) - 70eV, Positivesplash10-0006-9300000000-13c710ac0e0547e1ec402017-08-28Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Acetylcysteine GC-MS (1 TMS) - 70eV, Positivesplash10-0100-9400000000-f5d15a7328f8eeae70fe2017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Acetylcysteine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Acetylcysteine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine Quattro_QQQ 10V, Positive-QTOF (Annotated)splash10-00di-0900000000-b0d92bfcc2536077a6fc2012-07-24HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine Quattro_QQQ 25V, Positive-QTOF (Annotated)splash10-004i-9000000000-f305286cee84e6ae992b2012-07-24HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine Quattro_QQQ 40V, Positive-QTOF (Annotated)splash10-0a4l-9000000000-b10b4a2a6383336db8712012-07-24HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 20V, Positive-QTOFsplash10-056u-9100000000-dee19b6f8563eed2051a2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 10V, Positive-QTOFsplash10-00di-2900000000-193b1f4952acc2d056232021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 10V, Positive-QTOFsplash10-05i0-9800000000-f7137c548e759655c43b2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 30V, Positive-QTOFsplash10-0a4i-9000000000-65dc0cf1be1f7faf55ae2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 40V, Positive-QTOFsplash10-0a4i-9000000000-e55a53ec6cd33256625c2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 0V, Positive-QTOFsplash10-0229-1900000000-3e0a700d54f8834592472021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 30V, Positive-QTOFsplash10-0006-9000000000-218c3634602dff3b0ef72021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 30V, Positive-QTOFsplash10-0a6r-9000000000-2f5a099f36fbc10b636b2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 35V, Negative-QTOFsplash10-001i-9000000000-139c43a5e4b22393c7612021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 35V, Negative-QTOFsplash10-001i-9100000000-85cb2a9affac4a0968362021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 20V, Negative-QTOFsplash10-001i-9000000000-cf25c215d3b2da99e3022021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 0V, Positive-QTOFsplash10-0229-3900000000-2b2f710043af50879a7a2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 10V, Positive-QTOFsplash10-0006-9100000000-a3a7de05cec65f6478482021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 10V, Negative-QTOFsplash10-001i-9100000000-47a9c1939aac577c27932021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 35V, Negative-QTOFsplash10-001i-9100000000-be087caed53fbf56c4672021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Acetylcysteine 30V, Positive-QTOFsplash10-066r-9000000000-e49809cd4e6d92af0e532021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetylcysteine 10V, Positive-QTOFsplash10-03k9-1900000000-1fd4ac48c9f822eb35002017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetylcysteine 20V, Positive-QTOFsplash10-00di-6900000000-d0c51a69ac11096d05c32017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetylcysteine 40V, Positive-QTOFsplash10-00di-9200000000-218fead85424144539bd2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetylcysteine 10V, Negative-QTOFsplash10-03di-2900000000-55d7f2c18d3e85caad052017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetylcysteine 20V, Negative-QTOFsplash10-01zi-6900000000-ceec8ba29592de7e43622017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Acetylcysteine 40V, Negative-QTOFsplash10-001l-9200000000-fca1bad01b5fff79588b2017-07-26Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-16Wishart LabView Spectrum
Experimental 2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)2012-12-05Wishart LabView Spectrum

IR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted IR SpectrumIR Ion Spectrum (Quadrupole Ion Trap, ESI-, Adduct: [M-H]-)2022-02-11FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Quadrupole Ion Trap, ESI+, Adduct: [M+H]+)2022-02-11FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Quadrupole Ion Trap, ESI+, Adduct: [M+Na]+)2022-02-11FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-)2023-02-03FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)2023-02-03FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-03FELIX labView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm (predicted from logP)
Biospecimen Locations
  • Blood
  • Feces
  • Urine
Tissue Locations
  • Fibroblasts
  • Intestine
  • Kidney
  • Liver
  • Neuron
  • Placenta
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothNormal details
BloodDetected and Quantified4.0 (4.29-5.0) uMAdult (>18 years old)BothNormal details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
FecesDetected but not QuantifiedNot QuantifiedAdult (>18 years old)Both
Normal
details
UrineDetected and Quantified0-0.13 umol/mmol creatinineAdult (>18 years old)BothNormal
    • Great Plains Labo...
details
UrineDetected but not QuantifiedNot QuantifiedAdult (>18 years old)BothNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB06151
Phenol Explorer Compound IDNot Available
FooDB IDFDB002281
KNApSAcK IDNot Available
Chemspider ID11540
KEGG Compound IDC06809
BioCyc IDCPD-9175
BiGG IDNot Available
Wikipedia LinkAcetylcysteine
METLIN ID784
PubChem Compound12035
PDB IDNot Available
ChEBI ID28939
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1265501
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Sass JO, Mohr V, Olbrich H, Engelke U, Horvath J, Fliegauf M, Loges NT, Schweitzer-Krantz S, Moebus R, Weiler P, Kispert A, Superti-Furga A, Wevers RA, Omran H: Mutations in ACY1, the gene encoding aminoacylase 1, cause a novel inborn error of metabolism. Am J Hum Genet. 2006 Mar;78(3):401-9. Epub 2006 Jan 18. [PubMed:16465618 ]
  2. Faucet-Marquis V, Pont F, Stormer FC, Rizk T, Castegnaro M, Pfohl-Leszkowicz A: Evidence of a new dechlorinated ochratoxin A derivative formed in opossum kidney cell cultures after pretreatment by modulators of glutathione pathways: correlation with DNA-adduct formation. Mol Nutr Food Res. 2006 May;50(6):530-42. [PubMed:16671059 ]
  3. Wilkes JM, Clark LE, Herrera JL: Acetaminophen overdose in pregnancy. South Med J. 2005 Nov;98(11):1118-22. [PubMed:16351032 ]
  4. Weigand MA, Plachky J, Thies JC, Spies-Martin D, Otto G, Martin E, Bardenheuer HJ: N-acetylcysteine attenuates the increase in alpha-glutathione S-transferase and circulating ICAM-1 and VCAM-1 after reperfusion in humans undergoing liver transplantation. Transplantation. 2001 Aug 27;72(4):694-8. [PubMed:11544433 ]
  5. Soheili Majd E, Goldberg M, Stanislawski L: In vitro effects of ascorbate and Trolox on the biocompatibility of dental restorative materials. Biomaterials. 2003 Jan;24(1):3-9. [PubMed:12417172 ]
  6. Cereser C, Boget S, Parvaz P, Revol A: Thiram-induced cytotoxicity is accompanied by a rapid and drastic oxidation of reduced glutathione with consecutive lipid peroxidation and cell death. Toxicology. 2001 Jun 21;163(2-3):153-62. [PubMed:11516525 ]
  7. Hein OV, Ohring R, Schilling A, Oellerich M, Armstrong VW, Kox WJ, Spies C: N-acetylcysteine decreases lactate signal intensities in liver tissue and improves liver function in septic shock patients, as shown by magnetic resonance spectroscopy: extended case report. Crit Care. 2004 Apr;8(2):R66-71. Epub 2004 Jan 22. [PubMed:15025780 ]
  8. Kramers C, Jansman FG, Droogleever Fortuyn H: [A patient who refused treatment after self-poisoning with paracetamol]. Ned Tijdschr Geneeskd. 2006 Jul 22;150(29):1601-4. [PubMed:16901061 ]
  9. Lucena MI, Lopez-Torres E, Verge C, Andrade RJ, Puche MJ, Seoane J, de la Cuesta FS: The administration of N-acetylcysteine causes a decrease in prothrombin time in patients with paracetamol overdose but without evidence of liver impairment. Eur J Gastroenterol Hepatol. 2005 Jan;17(1):59-63. [PubMed:15647642 ]
  10. Langman M, Boyle P: Chemoprevention of colorectal cancer. Gut. 1998 Oct;43(4):578-85. [PubMed:9824590 ]
  11. Alscher DM, Braun N, Biegger D, Stuelten C, Gawronski K, Murdter TE, Kuhlmann U, Fritz P: Induction of metallothionein in proximal tubular cells by zinc and its potential as an endogenous antioxidant. Kidney Blood Press Res. 2005;28(3):127-33. Epub 2005 Apr 5. [PubMed:15812196 ]
  12. Hook GE, Gilmore LB, Talley FA: Dissolution and reassembly of tubular myelin-like multilamellated structures from the lungs of patients with pulmonary alveolar proteinosis. Lab Invest. 1986 Aug;55(2):194-208. [PubMed:3755483 ]
  13. Dawson AH, Henry DA, McEwen J: Adverse reactions to N-acetylcysteine during treatment for paracetamol poisoning. Med J Aust. 1989 Mar 20;150(6):329-31. [PubMed:2716644 ]
  14. Bailey B, McGuigan MA: Management of anaphylactoid reactions to intravenous N-acetylcysteine. Ann Emerg Med. 1998 Jun;31(6):710-5. [PubMed:9624310 ]
  15. Jones AL: Mechanism of action and value of N-acetylcysteine in the treatment of early and late acetaminophen poisoning: a critical review. J Toxicol Clin Toxicol. 1998;36(4):277-85. [PubMed:9711192 ]
  16. Breitkreutz R, Pittack N, Nebe CT, Schuster D, Brust J, Beichert M, Hack V, Daniel V, Edler L, Droge W: Improvement of immune functions in HIV infection by sulfur supplementation: two randomized trials. J Mol Med (Berl). 2000;78(1):55-62. [PubMed:10759030 ]
  17. Fulghesu AM, Ciampelli M, Muzj G, Belosi C, Selvaggi L, Ayala GF, Lanzone A: N-acetyl-cysteine treatment improves insulin sensitivity in women with polycystic ovary syndrome. Fertil Steril. 2002 Jun;77(6):1128-35. [PubMed:12057717 ]
  18. Bachert C, Hormann K, Mosges R, Rasp G, Riechelmann H, Muller R, Luckhaupt H, Stuck BA, Rudack C: An update on the diagnosis and treatment of sinusitis and nasal polyposis. Allergy. 2003 Mar;58(3):176-91. [PubMed:12653791 ]
  19. Brunk E, Sahoo S, Zielinski DC, Altunkaya A, Drager A, Mih N, Gatto F, Nilsson A, Preciat Gonzalez GA, Aurich MK, Prlic A, Sastry A, Danielsdottir AD, Heinken A, Noronha A, Rose PW, Burley SK, Fleming RMT, Nielsen J, Thiele I, Palsson BO: Recon3D enables a three-dimensional view of gene variation in human metabolism. Nat Biotechnol. 2018 Mar;36(3):272-281. doi: 10.1038/nbt.4072. Epub 2018 Feb 19. [PubMed:29457794 ]
  20. Van Damme P, Hole K, Pimenta-Marques A, Helsens K, Vandekerckhove J, Martinho RG, Gevaert K, Arnesen T: NatF contributes to an evolutionary shift in protein N-terminal acetylation and is important for normal chromosome segregation. PLoS Genet. 2011 Jul;7(7):e1002169. doi: 10.1371/journal.pgen.1002169. Epub 2011 Jul 7. [PubMed:21750686 ]
  21. Ree R, Varland S, Arnesen T: Spotlight on protein N-terminal acetylation. Exp Mol Med. 2018 Jul 27;50(7):1-13. doi: 10.1038/s12276-018-0116-z. [PubMed:30054468 ]
  22. Toyohara T, Akiyama Y, Suzuki T, Takeuchi Y, Mishima E, Tanemoto M, Momose A, Toki N, Sato H, Nakayama M, Hozawa A, Tsuji I, Ito S, Soga T, Abe T: Metabolomic profiling of uremic solutes in CKD patients. Hypertens Res. 2010 Sep;33(9):944-52. doi: 10.1038/hr.2010.113. Epub 2010 Jul 8. [PubMed:20613759 ]
  23. Vanholder R, Baurmeister U, Brunet P, Cohen G, Glorieux G, Jankowski J: A bench to bedside view of uremic toxins. J Am Soc Nephrol. 2008 May;19(5):863-70. doi: 10.1681/ASN.2007121377. Epub 2008 Feb 20. [PubMed:18287557 ]
  24. Dean O, Giorlando F, Berk M: N-acetylcysteine in psychiatry: current therapeutic evidence and potential mechanisms of action. J Psychiatry Neurosci. 2011 Mar;36(2):78-86. doi: 10.1503/jpn.100057. [PubMed:21118657 ]
  25. Mullins ME, Vitkovitsky IV: Hemolysis and hemolytic uremic syndrome following five-fold N-acetylcysteine overdose. Clin Toxicol (Phila). 2011 Oct;49(8):755-9. doi: 10.3109/15563650.2011.609821. [PubMed:21970774 ]

Transporters

General function:
Involved in transporter activity
Specific function:
Mediates the Na(+)-independent transport of organic anions such as pravastatin, taurocholate, methotrexate, dehydroepiandrosterone sulfate, 17-beta-glucuronosyl estradiol, estrone sulfate, prostaglandin E2, thromboxane B2, leukotriene C3, leukotriene E4, thyroxine and triiodothyronine. May play an important role in the clearance of bile acids and organic anions from the liver
Gene Name:
SLCO1B1
Uniprot ID:
Q9Y6L6
Molecular weight:
76448.0
References
  1. Daily A, Monks NR, Leggas M, Moscow JA: Abrogation of microcystin cytotoxicity by MAP kinase inhibitors and N-acetyl cysteine is confounded by OATPIB1 uptake activity inhibition. Toxicon. 2010 Apr 1;55(4):827-37. doi: 10.1016/j.toxicon.2009.11.019. Epub 2009 Nov 24. [PubMed:19944114 ]