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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 09:04:32 UTC
Update Date2021-09-26 23:03:50 UTC
HMDB IDHMDB0251682
Secondary Accession NumbersNone
Metabolite Identification
Common NameEcadotril
DescriptionRacecadotril, also known as tiorfan or hidrasec, belongs to the class of organic compounds known as n-acyl-alpha amino acids and derivatives. N-acyl-alpha amino acids and derivatives are compounds containing an alpha amino acid (or a derivative thereof) which bears an acyl group at its terminal nitrogen atom. Racecadotril is an extremely weak basic (essentially neutral) compound (based on its pKa). In Italy it is sold under the tradename Tiorfix. In India it's available as Redotril and enuff. It is sold under the tradenames Hidrasec or, in France, Tiorfan. Racecadotril is rapidly and effectively metabolized to the active metabolite thiorphan which inhibits enkephalinase enzyme and exhibits anti-secretory effect. Racecadotril is rapidly absorbed after oral administration and doses of 30 mg, 100 mg and 300 mg reached Cmax within 60 min. Unlike other opioid medications used to treat diarrhea, which reduce intestinal motility, racecadotril has an antisecretory effect—it reduces the secretion of water and electrolytes into the intestine. It is available in France (where it was first introduced in ~1990) and other European countries (including Germany, Italy, the UK, Spain, Russia and the Czech Republic) as well as most of South America and some South East Asian countries (including China, India and Thailand), but not in the United States. Thiorphan is the active metabolite of racecadotril, which exerts the bulk of its inhibitory actions on enkephalinase. Racecadotril can be used for treatment of acute diarrhea patients and has better tolerability than loperamide. Food does not affect bioavailability of racecadotril. Several guidelines have recommended racecadotril use in addition to oral rehydration treatment in children with acute diarrhea. This compound has been identified in human blood as reported by (PMID: 31557052 ). Ecadotril is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Ecadotril 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
TiorfanKegg
HidrasecKegg
EcadotrilMeSH
SinorphanMeSH
Acetorphan, (R)-isomerMeSH
Acetorphan, (S)-isomerMeSH
N-(3-Acetylmercapto-2-benzylpropanoyl)glycine benzyl esterMeSH
AcetorphanMeSH
RetorphanMeSH
Chemical FormulaC21H23NO4S
Average Molecular Weight385.48
Monoisotopic Molecular Weight385.134779399
IUPAC Namebenzyl 2-{2-[(acetylsulfanyl)methyl]-3-phenylpropanamido}acetate
Traditional Namebenzyl {2-[(acetylsulfanyl)methyl]-3-phenylpropanamido}acetate
CAS Registry NumberNot Available
SMILES
CC(=O)SCC(CC1=CC=CC=C1)C(=O)NCC(=O)OCC1=CC=CC=C1
InChI Identifier
InChI=1S/C21H23NO4S/c1-16(23)27-15-19(12-17-8-4-2-5-9-17)21(25)22-13-20(24)26-14-18-10-6-3-7-11-18/h2-11,19H,12-15H2,1H3,(H,22,25)
InChI KeyODUOJXZPIYUATO-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as n-acyl-alpha amino acids and derivatives. N-acyl-alpha amino acids and derivatives are compounds containing an alpha amino acid (or a derivative thereof) which bears an acyl group at its terminal nitrogen atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentN-acyl-alpha amino acids and derivatives
Alternative Parents
Substituents
  • Alpha-amino acid ester
  • N-acyl-alpha amino acid or derivatives
  • Benzyloxycarbonyl
  • Monocyclic benzene moiety
  • Benzenoid
  • Carboxylic acid ester
  • Carbothioic s-ester
  • Thiocarboxylic acid ester
  • Carboximidic acid
  • Carboximidic acid derivative
  • Monocarboxylic acid or derivatives
  • Thiocarboxylic acid or derivatives
  • Organic 1,3-dipolar compound
  • Sulfenyl compound
  • Propargyl-type 1,3-dipolar organic compound
  • Hydrocarbon derivative
  • Organic oxygen compound
  • Organic oxide
  • Organonitrogen compound
  • Organooxygen compound
  • Organosulfur compound
  • Organopnictogen compound
  • Carbonyl group
  • Organic nitrogen compound
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic 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
logP2.72ALOGPS
logP3.17ChemAxon
logS-5.3ALOGPS
pKa (Strongest Acidic)12.6ChemAxon
pKa (Strongest Basic)-2.1ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area72.47 ŲChemAxon
Rotatable Bond Count11ChemAxon
Refractivity106 m³·mol⁻¹ChemAxon
Polarizability40.84 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]+183.58630932474
DeepCCS[M-H]-181.22830932474
DeepCCS[M-2H]-215.20130932474
DeepCCS[M+Na]+190.50330932474
AllCCS[M+H]+191.132859911
AllCCS[M+H-H2O]+188.432859911
AllCCS[M+NH4]+193.532859911
AllCCS[M+Na]+194.232859911
AllCCS[M-H]-189.632859911
AllCCS[M+Na-2H]-189.832859911
AllCCS[M+HCOO]-190.332859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
EcadotrilCC(=O)SCC(CC1=CC=CC=C1)C(=O)NCC(=O)OCC1=CC=CC=C13874.7Standard polar33892256
EcadotrilCC(=O)SCC(CC1=CC=CC=C1)C(=O)NCC(=O)OCC1=CC=CC=C12716.6Standard non polar33892256
EcadotrilCC(=O)SCC(CC1=CC=CC=C1)C(=O)NCC(=O)OCC1=CC=CC=C13058.9Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Ecadotril,1TMS,isomer #1CC(=O)SCC(CC1=CC=CC=C1)C(=O)N(CC(=O)OCC1=CC=CC=C1)[Si](C)(C)C3033.0Semi standard non polar33892256
Ecadotril,1TMS,isomer #1CC(=O)SCC(CC1=CC=CC=C1)C(=O)N(CC(=O)OCC1=CC=CC=C1)[Si](C)(C)C2931.2Standard non polar33892256
Ecadotril,1TMS,isomer #1CC(=O)SCC(CC1=CC=CC=C1)C(=O)N(CC(=O)OCC1=CC=CC=C1)[Si](C)(C)C4043.0Standard polar33892256
Ecadotril,1TBDMS,isomer #1CC(=O)SCC(CC1=CC=CC=C1)C(=O)N(CC(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C3234.8Semi standard non polar33892256
Ecadotril,1TBDMS,isomer #1CC(=O)SCC(CC1=CC=CC=C1)C(=O)N(CC(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C3110.2Standard non polar33892256
Ecadotril,1TBDMS,isomer #1CC(=O)SCC(CC1=CC=CC=C1)C(=O)N(CC(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C4059.8Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Ecadotril GC-MS (Non-derivatized) - 70eV, Positivesplash10-0006-9240000000-586e47064fea80ae4e332021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Ecadotril 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 - Ecadotril LC-ESI-qTof , Positive-QTOFsplash10-014l-1295000000-b84f3c2b1498077b24762017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Ecadotril LC-ESI-qTof , Positive-QTOFsplash10-014l-1395000000-c4e257557748aee5583a2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Ecadotril , positive-QTOFsplash10-014l-1295000000-b84f3c2b1498077b24762017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Ecadotril , positive-QTOFsplash10-014l-1395000000-c4e257557748aee5583a2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Ecadotril 35V, Positive-QTOFsplash10-0006-9471000000-ba589bcbead6b404d6652021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ecadotril 10V, Positive-QTOFsplash10-01p6-1329000000-a5cbf56c31acae2d4f332017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ecadotril 20V, Positive-QTOFsplash10-03dm-5954000000-cc93a6be7daeb38598b22017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ecadotril 40V, Positive-QTOFsplash10-016v-4900000000-d7bce5fd1ce5c365ba9a2017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ecadotril 10V, Negative-QTOFsplash10-0036-2169000000-47d0b07f79ded09168462017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ecadotril 20V, Negative-QTOFsplash10-0006-6496000000-fcce7e459b4db85ab4e52017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ecadotril 40V, Negative-QTOFsplash10-0006-9110000000-eb693975924b390bcb252017-07-26Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ecadotril 10V, Positive-QTOFsplash10-000l-3229000000-a6feb43285fadba7a1a52021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ecadotril 20V, Positive-QTOFsplash10-0006-9812000000-3d6a62a45bef505cb68d2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ecadotril 40V, Positive-QTOFsplash10-0006-9600000000-9ee93c3089a473d7e5a62021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ecadotril 10V, Negative-QTOFsplash10-00ec-9015000000-6d70197d1931e7e61d742021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ecadotril 20V, Negative-QTOFsplash10-006x-9000000000-4ef7b74eec4beef02f302021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Ecadotril 40V, Negative-QTOFsplash10-00di-9110000000-7ffa3a375088354900b62021-10-12Wishart 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 IDDB11696
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 LinkRacecadotril
METLIN IDNot Available
PubChem Compound107751
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 ]