AFCDB: Ethanethiol (FDB009365)

Record Information

Version

1.0

Creation date

2010-04-08 22:08:32 UTC

Update date

2019-11-26 03:03:27 UTC

Primary ID

FDB009365

Secondary Accession Numbers

Not Available

Chemical Information

FooDB Name

Ethanethiol

Description

Ethanethiol, also known as ethyl-mercaptan or ethanethiol sodium salt, is a member of the class of compounds known as alkylthiols. Alkylthiols are organic compounds containing the thiol functional group linked to an alkyl chain. Ethanethiol is soluble (in water) and a very weakly acidic compound (based on its pKa). Ethanethiol is a fruity and sulfurous tasting compound found in potato, which makes ethanethiol a potential biomarker for the consumption of this food product. Ethanethiol may be a unique S.cerevisiae (yeast) metabolite. Ethanethiol, commonly known as ethyl mercaptan, is a clear liquid with a distinct odor. It is an organosulfur compound with the formula CH3CH2SH. Abbreviated EtSH, it consists of an ethyl group (Et), CH3CH2, attached to a thiol group, SH. Its structure parallels that of ethanol, but with sulfur in place of oxygen. The odor of EtSH is infamous. Ethanethiol is more volatile than ethanol due to a diminished ability to engage in hydrogen bonding. Ethanethiol is toxic. It occurs naturally as a minor component of petroleum, and may be added to otherwise odorless gaseous products such as liquefied petroleum gas (LPG) to help warn of gas leaks. At these concentrations, ethanethiol is not harmful .

CAS Number

75-08-1

Structure

MOL SDF PDB SMILES InChI

Synonyms

Synonym	Source
Not Available	Not Available

Predicted Properties

Property	Value	Source
Water Solubility	10.5 g/L	ALOGPS
logP	1.14	ALOGPS
logP	1.09	ChemAxon
logS	-0.77	ALOGPS
pKa (Strongest Acidic)	10.23	ChemAxon
pKa (Strongest Basic)	-9.5	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	0	ChemAxon
Hydrogen Donor Count	1	ChemAxon
Polar Surface Area	0 Å²	ChemAxon
Rotatable Bond Count	0	ChemAxon
Refractivity	19.04 m³·mol⁻¹	ChemAxon
Polarizability	7.25 Å³	ChemAxon
Number of Rings	0	ChemAxon
Bioavailability	Yes	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	Yes	ChemAxon
MDDR-like Rule	No	ChemAxon

Chemical Formula

C2H6S

IUPAC name

ethanethiol

InChI Identifier

InChI=1S/C2H6S/c1-2-3/h3H,2H2,1H3

InChI Key

DNJIEGIFACGWOD-UHFFFAOYSA-N

Isomeric SMILES

CCS

Average Molecular Weight

62.134

Monoisotopic Molecular Weight

62.019020882

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.

Kingdom

Organic compounds

Super Class

Organosulfur compounds

Class

Thiols

Sub Class

Alkylthiols

Direct Parent

Alkylthiols

Alternative Parents

Hydrocarbon derivatives

Substituents

Alkylthiol
Hydrocarbon derivative
Aliphatic acyclic compound

Molecular Framework

Aliphatic acyclic compounds

External Descriptors

a thiol (CPD-10467 )

Ontology

No ontology term

Physico-Chemical Properties

Physico-Chemical Properties - Experimental

Property	Value	Reference
Physical state	liquid
Physical Description	Not Available
Mass Composition	Not Available
Melting Point	-147.8 oC
Boiling Point	Not Available
Experimental Water Solubility	15.6 mg/mL at 25 oC	WAKITA,K et al. (1986)
Experimental logP	Not Available
Experimental pKa	10.6
Isoelectric point	Not Available
Charge	Not Available
Optical Rotation	Not Available
Spectroscopic UV Data	Not Available
Density	Not Available
Refractive Index	Not Available

Spectra

EI-MS/GC-MS

Type	Description	Splash Key	View
EI-MS	Mass Spectrum (Electron Ionization)	splash10-01t9-9000000000-144955804fceb52bf28d	2015-03-01	View Spectrum
Predicted GC-MS	Ethanethiol, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positive	splash10-01t9-9000000000-e554801b2c209c96576b	Spectrum
Predicted GC-MS	Ethanethiol, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positive	Not Available	Spectrum

MS/MS

Type	Description	Splash Key	View
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-03di-9000000000-464950dd0fda35fb38f1	2016-08-03	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-03di-9000000000-8b371bbe623ac0de5094	2016-08-03	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-004i-9000000000-a30a42ceb451cee5e5d4	2016-08-03	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-03e9-9000000000-98911442201d3094f412	2016-08-03	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-03di-9000000000-db1ba97523e98f888f3b	2016-08-03	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-01q9-9000000000-4e4c2cfefc54912e033a	2016-08-03	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-03di-9000000000-6fc9e9a3cbf6090ab8d5	2021-10-12	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-03di-9000000000-6fc9e9a3cbf6090ab8d5	2021-10-12	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-03e9-9000000000-86d52f1a21c4ca2e4231	2021-10-12	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-03di-9000000000-f865abc3930f083f5ea2	2021-10-12	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-03di-9000000000-a06109d2bea8940ff505	2021-10-12	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-03dj-9000000000-dd35cbb5a8a721d072cf	2021-10-12	View Spectrum

NMR

Type	Description	View
1D NMR	¹H NMR Spectrum (1D, 90 MHz, CDCl₃, experimental)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 25.16 MHz, CDCl₃, experimental)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 100 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 100 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 200 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 200 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 300 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 300 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 400 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 400 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 500 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 500 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 600 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 600 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 700 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 700 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 800 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 800 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 900 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 900 MHz, D₂O, predicted)	Spectrum

External Links

ChemSpider ID

Not Available

ChEMBL ID

Not Available

KEGG Compound ID

Not Available

Pubchem Compound ID

6343

Pubchem Substance ID

Not Available

ChEBI ID

38625

Phenol-Explorer ID

Not Available

DrugBank ID

Not Available

HMDB ID

Not Available

CRC / DFC (Dictionary of Food Compounds) ID

Not Available

EAFUS ID

1121

Dr. Duke ID

ETHANETHIOL

BIGG ID

Not Available

KNApSAcK ID

Not Available

HET ID

Not Available

Food Biomarker Ontology

Not Available

VMH ID

Not Available

Flavornet ID

Not Available

GoodScent ID

rw1242961

SuperScent ID

Not Available

Wikipedia ID

Not Available

Phenol-Explorer Metabolite ID

Not Available

Duplicate IDS

Not Available

Old DFC IDS

Not Available

Associated Foods

Food	Content Range	Average	Reference
Food			Reference

Biological Effects and Interactions

Health Effects / Bioactivities

Not Available

Enzymes

Not Available

Pathways

Not Available

Metabolism

Not Available

Biosynthesis

Not Available

Organoleptic Properties

Flavours

Flavor	Citations
sulfurous	The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
fruity	The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.

Files

MSDS

Not Available

References

Synthesis Reference

Not Available

General Reference

Not Available

Content Reference

— Duke, James. 'Dr. Duke's Phytochemical and Ethnobotanical Databases. United States Department of Agriculture.' Agricultural Research Service, Accessed April 27 (2004).

Ethanethiol (FDB009365)

Structure for FDB009365 (Ethanethiol)