Record Information
Version1.0
Creation date2010-04-08 22:09:23 UTC
Update date2019-11-26 03:04:24 UTC
Primary IDFDB010966
Secondary Accession NumbersNot Available
Chemical Information
FooDB Name2,5-Dimethylthiophene
Description2,5-Dimethylthiophene belongs to the class of organic compounds known as 2,5-disubstituted thiophenes. These are organic compounds containing a thiophene that is disubstituted at the C-2, and C5-positions. 2,5-Dimethylthiophene is a nutty and sulfury tasting compound. 2,5-Dimethylthiophene has been detected, but not quantified in, garden onions (Allium cepa) and soft-necked garlics (Allium sativum L. var. sativum). This could make 2,5-dimethylthiophene a potential biomarker for the consumption of these foods. Based on a literature review a significant number of articles have been published on 2,5-Dimethylthiophene.
CAS Number638-02-8
Structure
Thumb
Synonyms
SynonymSource
2,5-Dimethyl-thiopheneHMDB
Thiophene, 2,5-dimethyl-biospider
Predicted Properties
PropertyValueSource
Water Solubility0.53 g/LALOGPS
logP2.71ALOGPS
logP3.05ChemAxon
logS-2.3ALOGPS
pKa (Strongest Basic)-7ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity33.28 m³·mol⁻¹ChemAxon
Polarizability12.79 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC6H8S
IUPAC name2,5-dimethylthiophene
InChI IdentifierInChI=1S/C6H8S/c1-5-3-4-6(2)7-5/h3-4H,1-2H3
InChI KeyGWQOOADXMVQEFT-UHFFFAOYSA-N
Isomeric SMILESCC1=CC=C(C)S1
Average Molecular Weight112.193
Monoisotopic Molecular Weight112.034670946
Classification
Description Belongs to the class of organic compounds known as 2,5-disubstituted thiophenes. These are organic compounds containing a thiophene that is disubstituted at the C-2, and C5-positions.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassThiophenes
Sub Class2,5-disubstituted thiophenes
Direct Parent2,5-disubstituted thiophenes
Alternative Parents
Substituents
  • 2,5-disubstituted thiophene
  • Heteroaromatic compound
  • Hydrocarbon derivative
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic 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 64.23%; H 7.19%; S 28.58%DFC
Melting PointFp -62.6°DFC
Boiling PointBp 136.8°DFC
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
Densityd20 0.99DFC
Refractive Indexn20D 1.5129DFC
Spectra
Spectra
EI-MS/GC-MS
TypeDescriptionSplash KeyView
Predicted GC-MS2,5-Dimethylthiophene, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-03di-4900000000-dac1bb03c3403982ef47Spectrum
Predicted GC-MS2,5-Dimethylthiophene, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MS2,5-Dimethylthiophene, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
MS/MS
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03di-0900000000-2ba7f8de0edaf5372882Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03di-3900000000-a07b86fe89b4394040c0Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0udj-9000000000-3b5ed0ab0c762f71aa78Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-03di-3900000000-4e1b538bae01f61ebb37Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-03di-3900000000-955a67de6471ac8eb479Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0ced-9000000000-19b27e88ddc7f51e6b03Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-03di-0900000000-0b420ab7e14ab10017dcSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-03di-2900000000-63a235e47d6575c7d101Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9200000000-5367978c393f5538f7e5Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0imr-9300000000-2f4a100bb306dc6fb5bbSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03di-6900000000-e47090a56416111669c5Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0w2a-9000000000-61958bd05f04427c330eSpectrum
NMRNot Available
ChemSpider ID11998
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound ID12514
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDHMDB32979
CRC / DFC (Dictionary of Food Compounds) IDFWX60-B:FWX60-B
EAFUS IDNot Available
Dr. Duke ID2,5-DIMETHYLTHIOPHENE
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDrw1043071
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 / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
Flavours
FlavorCitations
nutty
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
sulfury
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
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).