Record Information
Version1.0
Creation date2010-04-08 22:09:59 UTC
Update date2019-11-26 03:06:10 UTC
Primary IDFDB012096
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameGlyceollin I
DescriptionIsopentyl mercaptan, also known as 2-methyl-4-butanethiol or fema 3858, belongs to the class of organic compounds known as alkylthiols. These are organic compounds containing the thiol functional group linked to an alkyl chain. Isopentyl mercaptan is an extremely weak basic (essentially neutral) compound (based on its pKa). Isopentyl mercaptan is a glue and onion tasting compound. Isopentyl mercaptan has been detected, but not quantified in, alcoholic beverages. This could make isopentyl mercaptan a potential biomarker for the consumption of these foods.
CAS Number57103-57-8
Structure
Thumb
Synonyms
SynonymSource
1-Mercapto-3-methylbutaneHMDB
2-Methyl-4-butanethiolHMDB
3-Methyl-1-butanethiolHMDB
3-Methyl-1-butylthiolHMDB
3-Methylbutane-1-thiolHMDB
3-MethylbutanethiolHMDB
FEMA 3858HMDB
Isoamyl mercaptanHMDB
Isoamyl sulfhydrateHMDB
Isoamyl thioalcoholHMDB
IsoamylthiolHMDB
IsopentanethiolHMDB
Thioisoamyl alcoholHMDB
rac-Glyceollin IChEMBL, HMDB
(-) - Glyceollin IHMDB
(-)-Glyceollin IHMDB
2,2-Dimethyl-2H,6H-benzofuro[3,2-c]pyrano[2,3-H][1]benzopyran-6a,9(11ah)-diol, 9ciHMDB
GlyceollinHMDB
Glyceollin IMeSH
(-) - glyceollin Ibiospider
2,2-Dimethyl-2H,6H-benzofuro[3,2-c]pyrano[2,3-h][1]benzopyran-6a,9(11aH)-diol, 9CIdb_source
Predicted Properties
PropertyValueSource
Water Solubility0.06 g/LALOGPS
logP3.24ALOGPS
logP2.91ChemAxon
logS-3.8ALOGPS
pKa (Strongest Acidic)9.4ChemAxon
pKa (Strongest Basic)-4.1ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area68.15 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity92.08 m³·mol⁻¹ChemAxon
Polarizability35.63 ųChemAxon
Number of Rings5ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC20H18O5
IUPAC name17,17-dimethyl-3,12,18-trioxapentacyclo[11.8.0.0²,¹⁰.0⁴,⁹.0¹⁴,¹⁹]henicosa-1(13),4(9),5,7,14(19),15,20-heptaene-6,10-diol
InChI IdentifierInChI=1S/C20H18O5/c1-19(2)8-7-12-15(25-19)6-4-13-17(12)23-10-20(22)14-5-3-11(21)9-16(14)24-18(13)20/h3-9,18,21-22H,10H2,1-2H3
InChI KeyYIFYYPKWOQSCRI-UHFFFAOYSA-N
Isomeric SMILESCC1(C)OC2=C(C=C1)C1=C(C=C2)C2OC3=C(C=CC(O)=C3)C2(O)CO1
Average Molecular Weight338.3539
Monoisotopic Molecular Weight338.115423686
Classification
Description belongs to the class of organic compounds known as alkylthiols. These are organic compounds containing the thiol functional group linked to an alkyl chain.
KingdomOrganic compounds
Super ClassOrganosulfur compounds
ClassThiols
Sub ClassAlkylthiols
Direct ParentAlkylthiols
Alternative Parents
Substituents
  • Alkylthiol
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Ontology
Disposition

Route of exposure:

Biological location:

Source:

Role

Biological role:

Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionC 71.00%; H 5.36%; O 23.64%DFC
Melting PointNot Available
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-00dr-1729000000-509c3c88ec1754df6c4aJSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-00xr-9504700000-aaaddd9634462f5876d2JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-1009000000-7da7b6353a3bf7f2ada4JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-2049000000-855330d2cec507834ce0JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00kg-9110000000-8a0d1442e4b4f3322f0fJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-1009000000-7da7b6353a3bf7f2ada4JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-2049000000-855330d2cec507834ce0JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00kg-9110000000-8a0d1442e4b4f3322f0fJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0009000000-37c5e7045763865109d4JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-0019000000-4f535f09f63f7d0c1030JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0udi-1091000000-7a0481b012fd7d6d95caJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0009000000-37c5e7045763865109d4JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-0019000000-4f535f09f63f7d0c1030JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0udi-1091000000-7a0481b012fd7d6d95caJSpectraViewer
ChemSpider ID3673310
ChEMBL IDNot Available
KEGG Compound IDC01701
Pubchem Compound ID4475100
Pubchem Substance IDNot Available
ChEBI ID16470
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDHMDB33901
CRC / DFC (Dictionary of Food Compounds) IDHDC95-H:HDC95-H
EAFUS IDNot Available
Dr. Duke IDGLYCEOLLIN-I
BIGG IDNot Available
KNApSAcK IDC00002530
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
FoodReference
Biological Effects and Interactions
Health Effects / Bioactivities
DescriptorIDDefinitionReference
anti bacterial33282 A substance that kills or slows the growth of bacteria.DUKE
fungicide24127 A substance used to destroy fungal pests.DUKE
nematicide25491 A substance used to destroy pests of the phylum Nematoda (roundworms).DUKE
pesticide25944 Strictly, a substance intended to kill pests. In common usage, any substance used for controlling, preventing, or destroying animal, microbiological or plant pests.DUKE
phytoalexin26115 A toxin made by a plant that acts against an organism attacking it.DUKE
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Files
MSDSNot Available
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference— Duke, James. 'Dr. Duke's Phytochemical and Ethnobotanical Databases. United States Department of Agriculture.' Agricultural Research Service, Accessed April 27 (2004).
— Shinbo, Y., et al. 'KNApSAcK: a comprehensive species-metabolite relationship database.' Plant Metabolomics. Springer Berlin Heidelberg, 2006. 165-181.