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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 15:18:26 UTC
Update Date2021-09-26 23:10:31 UTC
HMDB IDHMDB0255576
Secondary Accession NumbersNone
Metabolite Identification
Common NameNialamide
DescriptionNialamide, also known as niamid, belongs to the class of organic compounds known as pyridinecarboxylic acids and derivatives. Pyridinecarboxylic acids and derivatives are compounds containing a pyridine ring bearing a carboxylic acid group or a derivative thereof. Nialamide (Niamid, Niamide, Nuredal, Surgex) is a non-selective, irreversible monoamine oxidase inhibitor (MAOI) of the hydrazine class that was used as an antidepressant. Nialamide is a strong basic compound (based on its pKa). It was withdrawn by Pfizer several decades ago due to the risk of hepatotoxicity. The antiatherogenic activity of nialamide was used to design pyridinolcarbamate. This compound has been identified in human blood as reported by (PMID: 31557052 ). Nialamide is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Nialamide is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
Synonyms
ValueSource
NiamidKegg
Chemical FormulaC16H18N4O2
Average Molecular Weight298.3397
Monoisotopic Molecular Weight298.14297584
IUPAC NameN-benzyl-3-(pyridin-4-ylformohydrazido)propanamide
Traditional Namenialamide
CAS Registry NumberNot Available
SMILES
O=C(CCNNC(=O)C1=CC=NC=C1)NCC1=CC=CC=C1
InChI Identifier
InChI=1S/C16H18N4O2/c21-15(18-12-13-4-2-1-3-5-13)8-11-19-20-16(22)14-6-9-17-10-7-14/h1-7,9-10,19H,8,11-12H2,(H,18,21)(H,20,22)
InChI KeyNOIIUHRQUVNIDD-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as pyridinecarboxylic acids and derivatives. Pyridinecarboxylic acids and derivatives are compounds containing a pyridine ring bearing a carboxylic acid group or a derivative thereof.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassPyridines and derivatives
Sub ClassPyridinecarboxylic acids and derivatives
Direct ParentPyridinecarboxylic acids and derivatives
Alternative Parents
Substituents
  • Pyridine carboxylic acid or derivatives
  • Monocyclic benzene moiety
  • Benzenoid
  • Heteroaromatic compound
  • Carboxylic acid hydrazide
  • Azacycle
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Carboxylic acid derivative
  • Carboximidic acid derivative
  • Carboximidic acid
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Organic oxygen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic nitrogen compound
  • Organic oxide
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
logP0.65ALOGPS
logP0.39ChemAxon
logS-3.5ALOGPS
pKa (Strongest Acidic)13.65ChemAxon
pKa (Strongest Basic)3.41ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area83.12 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity93.91 m³·mol⁻¹ChemAxon
Polarizability32.07 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+169.1930932474
DeepCCS[M-H]-166.83230932474
DeepCCS[M-2H]-199.71930932474
DeepCCS[M+Na]+175.28430932474
AllCCS[M+H]+171.532859911
AllCCS[M+H-H2O]+168.132859911
AllCCS[M+NH4]+174.632859911
AllCCS[M+Na]+175.532859911
AllCCS[M-H]-172.432859911
AllCCS[M+Na-2H]-172.532859911
AllCCS[M+HCOO]-172.632859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
NialamideO=C(CCNNC(=O)C1=CC=NC=C1)NCC1=CC=CC=C13595.2Standard polar33892256
NialamideO=C(CCNNC(=O)C1=CC=NC=C1)NCC1=CC=CC=C12442.3Standard non polar33892256
NialamideO=C(CCNNC(=O)C1=CC=NC=C1)NCC1=CC=CC=C13051.4Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Nialamide,1TMS,isomer #1C[Si](C)(C)N(CCC(=O)NCC1=CC=CC=C1)NC(=O)C1=CC=NC=C12954.7Semi standard non polar33892256
Nialamide,1TMS,isomer #1C[Si](C)(C)N(CCC(=O)NCC1=CC=CC=C1)NC(=O)C1=CC=NC=C12778.2Standard non polar33892256
Nialamide,1TMS,isomer #1C[Si](C)(C)N(CCC(=O)NCC1=CC=CC=C1)NC(=O)C1=CC=NC=C13778.9Standard polar33892256
Nialamide,1TMS,isomer #2C[Si](C)(C)N(NCCC(=O)NCC1=CC=CC=C1)C(=O)C1=CC=NC=C12860.7Semi standard non polar33892256
Nialamide,1TMS,isomer #2C[Si](C)(C)N(NCCC(=O)NCC1=CC=CC=C1)C(=O)C1=CC=NC=C12646.9Standard non polar33892256
Nialamide,1TMS,isomer #2C[Si](C)(C)N(NCCC(=O)NCC1=CC=CC=C1)C(=O)C1=CC=NC=C13702.1Standard polar33892256
Nialamide,1TMS,isomer #3C[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCNNC(=O)C1=CC=NC=C12899.4Semi standard non polar33892256
Nialamide,1TMS,isomer #3C[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCNNC(=O)C1=CC=NC=C12771.6Standard non polar33892256
Nialamide,1TMS,isomer #3C[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCNNC(=O)C1=CC=NC=C13734.9Standard polar33892256
Nialamide,2TMS,isomer #1C[Si](C)(C)N(CCC(=O)N(CC1=CC=CC=C1)[Si](C)(C)C)NC(=O)C1=CC=NC=C12846.6Semi standard non polar33892256
Nialamide,2TMS,isomer #1C[Si](C)(C)N(CCC(=O)N(CC1=CC=CC=C1)[Si](C)(C)C)NC(=O)C1=CC=NC=C12822.5Standard non polar33892256
Nialamide,2TMS,isomer #1C[Si](C)(C)N(CCC(=O)N(CC1=CC=CC=C1)[Si](C)(C)C)NC(=O)C1=CC=NC=C13589.5Standard polar33892256
Nialamide,2TMS,isomer #2C[Si](C)(C)N(CCC(=O)NCC1=CC=CC=C1)N(C(=O)C1=CC=NC=C1)[Si](C)(C)C2821.3Semi standard non polar33892256
Nialamide,2TMS,isomer #2C[Si](C)(C)N(CCC(=O)NCC1=CC=CC=C1)N(C(=O)C1=CC=NC=C1)[Si](C)(C)C2708.0Standard non polar33892256
Nialamide,2TMS,isomer #2C[Si](C)(C)N(CCC(=O)NCC1=CC=CC=C1)N(C(=O)C1=CC=NC=C1)[Si](C)(C)C3501.9Standard polar33892256
Nialamide,2TMS,isomer #3C[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCNN(C(=O)C1=CC=NC=C1)[Si](C)(C)C2733.0Semi standard non polar33892256
Nialamide,2TMS,isomer #3C[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCNN(C(=O)C1=CC=NC=C1)[Si](C)(C)C2676.8Standard non polar33892256
Nialamide,2TMS,isomer #3C[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCNN(C(=O)C1=CC=NC=C1)[Si](C)(C)C3505.1Standard polar33892256
Nialamide,3TMS,isomer #1C[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCN(N(C(=O)C1=CC=NC=C1)[Si](C)(C)C)[Si](C)(C)C2733.8Semi standard non polar33892256
Nialamide,3TMS,isomer #1C[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCN(N(C(=O)C1=CC=NC=C1)[Si](C)(C)C)[Si](C)(C)C2731.7Standard non polar33892256
Nialamide,3TMS,isomer #1C[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCN(N(C(=O)C1=CC=NC=C1)[Si](C)(C)C)[Si](C)(C)C3324.9Standard polar33892256
Nialamide,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N(CCC(=O)NCC1=CC=CC=C1)NC(=O)C1=CC=NC=C13158.3Semi standard non polar33892256
Nialamide,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N(CCC(=O)NCC1=CC=CC=C1)NC(=O)C1=CC=NC=C12988.0Standard non polar33892256
Nialamide,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N(CCC(=O)NCC1=CC=CC=C1)NC(=O)C1=CC=NC=C13835.4Standard polar33892256
Nialamide,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)N(NCCC(=O)NCC1=CC=CC=C1)C(=O)C1=CC=NC=C13085.0Semi standard non polar33892256
Nialamide,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)N(NCCC(=O)NCC1=CC=CC=C1)C(=O)C1=CC=NC=C12872.4Standard non polar33892256
Nialamide,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)N(NCCC(=O)NCC1=CC=CC=C1)C(=O)C1=CC=NC=C13753.7Standard polar33892256
Nialamide,1TBDMS,isomer #3CC(C)(C)[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCNNC(=O)C1=CC=NC=C13120.4Semi standard non polar33892256
Nialamide,1TBDMS,isomer #3CC(C)(C)[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCNNC(=O)C1=CC=NC=C12953.1Standard non polar33892256
Nialamide,1TBDMS,isomer #3CC(C)(C)[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCNNC(=O)C1=CC=NC=C13783.9Standard polar33892256
Nialamide,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)N(CCC(=O)N(CC1=CC=CC=C1)[Si](C)(C)C(C)(C)C)NC(=O)C1=CC=NC=C13319.5Semi standard non polar33892256
Nialamide,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)N(CCC(=O)N(CC1=CC=CC=C1)[Si](C)(C)C(C)(C)C)NC(=O)C1=CC=NC=C13166.6Standard non polar33892256
Nialamide,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)N(CCC(=O)N(CC1=CC=CC=C1)[Si](C)(C)C(C)(C)C)NC(=O)C1=CC=NC=C13686.9Standard polar33892256
Nialamide,2TBDMS,isomer #2CC(C)(C)[Si](C)(C)N(CCC(=O)NCC1=CC=CC=C1)N(C(=O)C1=CC=NC=C1)[Si](C)(C)C(C)(C)C3315.1Semi standard non polar33892256
Nialamide,2TBDMS,isomer #2CC(C)(C)[Si](C)(C)N(CCC(=O)NCC1=CC=CC=C1)N(C(=O)C1=CC=NC=C1)[Si](C)(C)C(C)(C)C3102.0Standard non polar33892256
Nialamide,2TBDMS,isomer #2CC(C)(C)[Si](C)(C)N(CCC(=O)NCC1=CC=CC=C1)N(C(=O)C1=CC=NC=C1)[Si](C)(C)C(C)(C)C3607.7Standard polar33892256
Nialamide,2TBDMS,isomer #3CC(C)(C)[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCNN(C(=O)C1=CC=NC=C1)[Si](C)(C)C(C)(C)C3209.9Semi standard non polar33892256
Nialamide,2TBDMS,isomer #3CC(C)(C)[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCNN(C(=O)C1=CC=NC=C1)[Si](C)(C)C(C)(C)C3042.8Standard non polar33892256
Nialamide,2TBDMS,isomer #3CC(C)(C)[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCNN(C(=O)C1=CC=NC=C1)[Si](C)(C)C(C)(C)C3605.7Standard polar33892256
Nialamide,3TBDMS,isomer #1CC(C)(C)[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCN(N(C(=O)C1=CC=NC=C1)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3436.7Semi standard non polar33892256
Nialamide,3TBDMS,isomer #1CC(C)(C)[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCN(N(C(=O)C1=CC=NC=C1)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3260.8Standard non polar33892256
Nialamide,3TBDMS,isomer #1CC(C)(C)[Si](C)(C)N(CC1=CC=CC=C1)C(=O)CCN(N(C(=O)C1=CC=NC=C1)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3523.7Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental GC-MSGC-MS Spectrum - Nialamide EI-B (Non-derivatized)splash10-056u-9500000000-09562bed5beb21b860eb2017-09-12HMDB team, MONA, MassBankView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Nialamide GC-MS (Non-derivatized) - 70eV, Positivesplash10-0a4l-5900000000-5721e353d586a9595c742021-09-24Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Nialamide 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 - Nialamide LC-ESI-qTof , Positive-QTOFsplash10-0002-0981000000-1b525a17732679e116212017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Nialamide LC-ESI-qTof , Positive-QTOFsplash10-0fk9-4900000000-edf91905d0d264f001ea2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Nialamide , positive-QTOFsplash10-0002-0981000000-1b525a17732679e116212017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Nialamide , positive-QTOFsplash10-0fk9-4900000000-edf91905d0d264f001ea2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Nialamide 35V, Positive-QTOFsplash10-0fdx-2900000000-448d763286b0874834b92021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Nialamide 35V, Negative-QTOFsplash10-000i-0900000000-dcba22c0a7ead136c37b2021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Nialamide 10V, Positive-QTOFsplash10-0a4i-2930000000-b230957e33d66c01196a2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Nialamide 20V, Positive-QTOFsplash10-0a4i-2900000000-86eaa95a3a7c2ca7001b2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Nialamide 40V, Positive-QTOFsplash10-052f-9400000000-7d109ed526f4566ee47e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Nialamide 10V, Negative-QTOFsplash10-0002-1590000000-7ab2cd0c3a453c0005372016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Nialamide 20V, Negative-QTOFsplash10-004s-4930000000-44bc420d74d8d90a92052016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Nialamide 40V, Negative-QTOFsplash10-00bl-9500000000-beaf90ed6187b9121e432016-08-03Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB04820
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNialamide
METLIN IDNot Available
PubChem Compound4472
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]