Ethanol, 2-mercapto-
- Formula: C2H6OS
- Molecular weight: 78.133
- IUPAC Standard InChI: InChI=1S/C2H6OS/c3-1-2-4/h3-4H,1-2H2
- IUPAC Standard InChIKey: DGVVWUTYPXICAM-UHFFFAOYSA-N
- CAS Registry Number: 60-24-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: β-Hydroxyethanethiol; β-Hydroxyethylmercaptan; β-Mercaptoethanol; Ethylene glycol, monothio-; Monothioethylene glycol; Monothioglycol; Thioethylene glycol; Thioglycol; Thiomonoglycol; 1-Ethanol-2-thiol; 1-Hydroxy-2-mercaptoethane; 1-Mercapto-2-hydroxyethane; 2-Hydroxy-1-ethanethiol; 2-Hydroxyethanethiol; 2-Hydroxyethyl mercaptan; 2-Mercapto-1-ethanol; 2-Mercaptoethanol; 2-Mercaptoethyl alcohol; 2-ME; Hydroxyethyl mercaptan; Mercaptoethanol; USAF EK-4196; 2-Thioethanol; Emery 5791; UN 2966; NSC 3723; 2-Sulfanylethanol; 2-Sulfanylethan-1-ol
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Gas phase ion energetics data
Go To: Top, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
View reactions leading to C2H6OS+ (ion structure unspecified)
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.1 | PE | Kimura, Katsumata, et al., 1981 | LLK |
| 9.65 | PE | Kimura, Katsumata, et al., 1981 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| CH4S+ | 10.42 ± 0.05 | CH2O | EI | Holmes, Lossing, et al., 1983 | LBLHLM |
Gas Chromatography
Go To: Top, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Van Den Dool and Kratz RI, polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-FFAP | 1498. | Huynh-Ba, Matthey-Doret, et al., 2003 | 30. m/0.32 mm/0.25 μm; Program: 35C(2min) => 6C/min => 180C => 10C/min => 240C (10min) |
| Capillary | DB-FFAP | 1498. | Huynh-Ba, Matthey-Doret, et al., 2003 | 30. m/0.32 mm/0.25 μm; Program: 35C(2min) => 6C/min => 180C => 10C/min => 240C (10min) |
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | OV-101 | 725. | Zenkevich, 2005 | 25. m/0.20 mm/0.10 μm, N2/He, 6. K/min; Tstart: 50. C; Tend: 250. C |
Normal alkane RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | CP-Sil 5 CB | 722. | Gros, Nizet, et al., 2011 | 50. m/0.32 mm/1.20 μm, Nitrogen; Program: 36 0C 20 0C/min -> 85 0C 1 0C/min -> 145 0C 3 0C/min -> 250 0C (30 min) |
| Capillary | CP Sil 5 CB | 717. | Vermeulen and Collin, 2006 | 50. m/0.32 mm/1.2 μm; Program: 40 0C (4 min) 2 0C/min -> 132 0C 10 0C/min -> 250 0C (15 min) |
| Capillary | CP Sil 5 CB | 717. | Vermeulen, Lejeune, et al., 2006 | 50. m/0.32 mm/1.2 μm; Program: 40C(4min) => 2C/min => 132C => 10C/min => 250C (15min) |
| Capillary | SPB-1 | 724. | Flanagan, Streete, et al., 1997 | 60. m/0.53 mm/5. μm, He; Program: 40C(6min) => 5C/min => 80C => 10C/min => 200C |
| Capillary | SPB-1 | 724. | Strete, Ruprah, et al., 1992 | 60. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C |
Normal alkane RI, polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | FFAP | 1538. | Gros, Nizet, et al., 2011 | 25. m/0.32 mm/0.30 μm, Nitrogen; Program: 36 0C 20 0C/min -> 85 0C 1 0C/min -> 145 0C 3 0C/min -> 250 0C (30 min) |
| Capillary | CP-Wax 58CB | 1501. | Vermeulen and Collin, 2006 | 25. m/0.32 mm/0.30 μm; Program: 40 0C (4 min) 2 0C/min -> 132 0C 10 0C/min -> 250 0C (15 min) |
| Capillary | FFAP | 1501. | Vermeulen, Lejeune, et al., 2006 | 25. m/0.32 mm/0.3 μm; Program: 40C(4min) => 2C/min => 132C => 10C/min => 250C (15min) |
References
Go To: Top, Gas phase ion energetics data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S.,
Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules
in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]
Holmes, Lossing, et al., 1983
Holmes, J.L.; Lossing, F.P.; Terlouw, J.K.; Burgers, P.C.,
Novel gas-phase ions. The radical cations [CH2XH]+. (X = F, Cl, Br, I, OH, NH2, SH) and [CH2CH2NH3]+.,
Can. J. Chem., 1983, 61, 2305. [all data]
Huynh-Ba, Matthey-Doret, et al., 2003
Huynh-Ba, T.; Matthey-Doret, W.; Fay, L.B.; Rhlid, R.B.,
Generation of thiols by biotransformation of cysteine-aldehyde conjugates with Baker's yeast,
J. Agric. Food Chem., 2003, 51, 12, 3629-3635, https://doi.org/10.1021/jf026198j
. [all data]
Zenkevich, 2005
Zenkevich, I.G.,
Experimentally measured retention indices., 2005. [all data]
Gros, Nizet, et al., 2011
Gros, J.; Nizet, S.; Collin, S.,
Occurence of odorant polyfunctional thiols in the Super Alpha Tomahawk Hop cultivar. Comparison with the thiol-rich Nelson Sauvin bitter variety,
J. Agric. Food Chem., 2011, 59, 16, 8853-8865, https://doi.org/10.1021/jf201294e
. [all data]
Vermeulen and Collin, 2006
Vermeulen, C.; Collin, S.,
Combinatorial Synthesis and Screening of Nover Odorants such as Polyfunctional Thiols,
Combinatorial Chem. High Throghput Screening, 2006, 9, 8, 583-590, https://doi.org/10.2174/138620706778249712
. [all data]
Vermeulen, Lejeune, et al., 2006
Vermeulen, C.; Lejeune, I.; Tran, T.T.H.; Collin, S.,
Occurrence of polyfunctional thiols in fresh lager beers,
J. Agric. Food Chem., 2006, 54, 14, 5061-5068, https://doi.org/10.1021/jf060669a
. [all data]
Flanagan, Streete, et al., 1997
Flanagan, R.J.; Streete, P.J.; Ramsey, J.D.,
Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56, retrieved from http://www.odccp.org/pdf/technicalseries1997-01-011.pdf. [all data]
Strete, Ruprah, et al., 1992
Strete, P.J.; Ruprah, M.; Ramsey, J.D.; Flanagan, R.J.,
Detection and identification of volatile substances by headspace capillary gas chromatography to aid the diagnosis of acute poisoning,
Analyst, 1992, 117, 7, 1111-1127, https://doi.org/10.1039/an9921701111
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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