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Version5.0
StatusExpected but not Quantified
Creation Date2012-09-12 03:17:51 UTC
Update Date2023-02-21 17:28:51 UTC
HMDB IDHMDB0041604
Secondary Accession Numbers
  • HMDB41604
Metabolite Identification
Common Name3-Mercaptopropanoic acid
Description3-Mercaptopropanoic acid, also known as 3-thiolpropanoate or 3-thiohydracrylic acid, belongs to the class of organic compounds known as carboxylic acids. Carboxylic acids are compounds containing a carboxylic acid group with the formula -C(=O)OH. 3-Mercaptopropanoic acid exists in all living organisms, ranging from bacteria to humans. 3-Mercaptopropanoic acid is a roasted and sulfurous tasting compound. 3-Mercaptopropanoic acid is a secondary metabolite. Secondary metabolites are metabolically or physiologically non-essential metabolites that may serve a role as defense or signalling molecules. In some cases they are simply molecules that arise from the incomplete metabolism of other secondary metabolites. Based on a literature review very few articles have been published on 3-Mercaptopropanoic acid.
Structure
Data?1677000531
Synonyms
ValueSource
2-Mercaptoethanecarboxylic acidChEBI
3-Mercaptopropionic acidChEBI
3-Thiohydracrylic acidChEBI
3-Thiolpropanoic acidChEBI
3-Thiopropanoic acidChEBI
3-Thiopropionic acidChEBI
3MPAChEBI
beta-Mercaptopropionic acidChEBI
beta-Thiopropionic acidChEBI
2-MercaptoethanecarboxylateGenerator
3-MercaptopropionateGenerator
3-ThiohydracrylateGenerator
3-ThiolpropanoateGenerator
3-ThiopropanoateGenerator
3-ThiopropionateGenerator
b-MercaptopropionateGenerator
b-Mercaptopropionic acidGenerator
beta-MercaptopropionateGenerator
Β-mercaptopropionateGenerator
Β-mercaptopropionic acidGenerator
b-ThiopropionateGenerator
b-Thiopropionic acidGenerator
beta-ThiopropionateGenerator
Β-thiopropionateGenerator
Β-thiopropionic acidGenerator
3-MercaptopropanoateGenerator
3-Mercaptopropanoic acid, 9ciHMDB
Thiohydracrylic acidHMDB
3 Mercaptopropanoic acidMeSH, HMDB
Acid, 3-mercaptopropionicMeSH, HMDB
3 Mercaptopropionic acidMeSH, HMDB
Acid, 3-mercaptopropanoicMeSH, HMDB
beta MercaptopropionateMeSH, HMDB
Chemical FormulaC3H6O2S
Average Molecular Weight106.144
Monoisotopic Molecular Weight106.008850126
IUPAC Name3-sulfanylpropanoic acid
Traditional Name3-mercaptopropionic acid
CAS Registry Number107-96-0
SMILES
OC(=O)CCS
InChI Identifier
InChI=1S/C3H6O2S/c4-3(5)1-2-6/h6H,1-2H2,(H,4,5)
InChI KeyDKIDEFUBRARXTE-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as carboxylic acids. Carboxylic acids are compounds containing a carboxylic acid group with the formula -C(=O)OH.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassCarboxylic acids
Direct ParentCarboxylic acids
Alternative Parents
Substituents
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Alkylthiol
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organosulfur compound
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Physiological effect
Disposition
ProcessNot Available
Role
Physical Properties
StateLiquid
Experimental Molecular Properties
PropertyValueReference
Melting Point16.8 °CNot Available
Boiling Point110.00 to 111.00 °C. @ 15.00 mm HgThe Good Scents Company Information System
Water Solubility0Not Available
LogP0.430The Good Scents Company Information System
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility15.5 g/LALOGPS
logP0.34ALOGPS
logP0.45ChemAxon
logS-0.84ALOGPS
pKa (Strongest Acidic)4.57ChemAxon
pKa (Strongest Basic)-9.6ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity25.07 m³·mol⁻¹ChemAxon
Polarizability10.2 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+119.50931661259
DarkChem[M-H]-112.97931661259
DeepCCS[M+H]+124.0730932474
DeepCCS[M-H]-122.08930932474
DeepCCS[M-2H]-157.60730932474
DeepCCS[M+Na]+131.7530932474
AllCCS[M+H]+125.932859911
AllCCS[M+H-H2O]+121.732859911
AllCCS[M+NH4]+129.932859911
AllCCS[M+Na]+131.132859911
AllCCS[M-H]-132.032859911
AllCCS[M+Na-2H]-136.732859911
AllCCS[M+HCOO]-141.832859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
3-Mercaptopropanoic acidOC(=O)CCS2361.2Standard polar33892256
3-Mercaptopropanoic acidOC(=O)CCS992.3Standard non polar33892256
3-Mercaptopropanoic acidOC(=O)CCS1028.9Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
3-Mercaptopropanoic acid,1TMS,isomer #1C[Si](C)(C)OC(=O)CCS1080.9Semi standard non polar33892256
3-Mercaptopropanoic acid,1TMS,isomer #2C[Si](C)(C)SCCC(=O)O1233.8Semi standard non polar33892256
3-Mercaptopropanoic acid,2TMS,isomer #1C[Si](C)(C)OC(=O)CCS[Si](C)(C)C1316.6Semi standard non polar33892256
3-Mercaptopropanoic acid,2TMS,isomer #1C[Si](C)(C)OC(=O)CCS[Si](C)(C)C1344.8Standard non polar33892256
3-Mercaptopropanoic acid,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)CCS1339.5Semi standard non polar33892256
3-Mercaptopropanoic acid,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)SCCC(=O)O1460.9Semi standard non polar33892256
3-Mercaptopropanoic acid,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)CCS[Si](C)(C)C(C)(C)C1772.4Semi standard non polar33892256
3-Mercaptopropanoic acid,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC(=O)CCS[Si](C)(C)C(C)(C)C1784.5Standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental GC-MSGC-MS Spectrum - 3-Mercaptopropanoic acid EI-B (Non-derivatized)splash10-0bvi-9200000000-f1549c9afaebf551db482017-09-12HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - 3-Mercaptopropanoic acid EI-B (Non-derivatized)splash10-0bvi-9200000000-f1549c9afaebf551db482018-05-18HMDB team, MONA, MassBankView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 3-Mercaptopropanoic acid GC-MS (Non-derivatized) - 70eV, Positivesplash10-0c00-9100000000-ebbe3d6e9a3cd5dacb052017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 3-Mercaptopropanoic acid GC-MS (1 TMS) - 70eV, Positivesplash10-022i-9300000000-b4c5434a05a98da57b442017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 3-Mercaptopropanoic acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 3-Mercaptopropanoic acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Mercaptopropanoic acid 10V, Positive-QTOFsplash10-0a4r-9600000000-b224679480650ede86bf2016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Mercaptopropanoic acid 20V, Positive-QTOFsplash10-0c09-9200000000-50e01f5872a90253cbe32016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Mercaptopropanoic acid 40V, Positive-QTOFsplash10-08i0-9000000000-53d62f29be351ebdff1d2016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Mercaptopropanoic acid 10V, Negative-QTOFsplash10-0ab9-9700000000-c55f06c1c84faab1c5692016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Mercaptopropanoic acid 20V, Negative-QTOFsplash10-0a4i-9500000000-3c6f4ec5b0a6bc81b3fd2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Mercaptopropanoic acid 40V, Negative-QTOFsplash10-001i-9000000000-0d7fd3526d8ad4ed3ade2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Mercaptopropanoic acid 10V, Positive-QTOFsplash10-000i-9100000000-3962af5fc221a65bdb472021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Mercaptopropanoic acid 20V, Positive-QTOFsplash10-03di-9000000000-2b094d0504d49a36fb102021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Mercaptopropanoic acid 40V, Positive-QTOFsplash10-0002-9000000000-730713f50ba822d0bf9c2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Mercaptopropanoic acid 10V, Negative-QTOFsplash10-001i-9000000000-5b4a9b8fa37acba04a912021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Mercaptopropanoic acid 20V, Negative-QTOFsplash10-001i-9000000000-942ac689538269d6ca7b2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3-Mercaptopropanoic acid 40V, Negative-QTOFsplash10-001i-9000000000-942ac689538269d6ca7b2021-09-24Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum

IR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-)2023-02-04FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)2023-02-04FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-04FELIX labView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
  • Extracellular
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB021759
KNApSAcK IDNot Available
Chemspider ID6267
KEGG Compound IDNot Available
BioCyc IDCPD-7673
BiGG IDNot Available
Wikipedia Link3-Mercaptopropionic acid
METLIN IDNot Available
PubChem Compound6514
PDB IDMPT
ChEBI ID44111
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1191161
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .