2-Acetyl-5-methylthiophene
- Formula: C7H8OS
- Molecular weight: 140.203
- IUPAC Standard InChIKey: YOSDTJYMDAEEAZ-UHFFFAOYSA-N
- CAS Registry Number: 13679-74-8
- 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: Methyl 5-methyl-2-thienyl ketone; Ethanone, 1-(5-methyl-2-thienyl)-; Ketone, methyl 5-methyl-2-thienyl; 2-Methyl-5-acetylthiophene; 1-(5-Methyl-2-thienyl)ethanone; 5-Methyl-2-acetylthiophene; Thiophene, 2-acetyl-5-methyl; 1-(5-methyl-2-thienyl)ethan-1-one
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
IR Spectrum
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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
View spectrum image in SVG format.
Download spectrum in JCAMP-DX format.
Owner | SRD/NIST Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | EPA-IR VAPOR PHASE LIBRARY |
State | gas |
Gas Chromatography
Go To: Top, IR Spectrum, 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, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | BP-5 | 1157. | Whitfield and Mottram, 2001 | 4. K/min; Column length: 50. m; Column diameter: 0.32 mm; Tstart: 60. C; Tend: 250. C |
Capillary | BP-5 | 1157. | Whitfield and Mottram, 1999 | He, 60. C @ 5. min, 4. K/min; Column length: 50. m; Column diameter: 0.32 mm; Tend: 250. C |
Capillary | DB-5 | 1145. | Madruga and Mottram, 1998 | 30. m/0.32 mm/1. μm, 60. C @ 5. min, 4. K/min, 250. C @ 20. min |
Capillary | OV-101 | 1123. | Misharina, Golovnya, et al., 1992 | 50. m/0.31 mm/0.5 μm, He, 4. K/min; Tstart: 50. C; Tend: 250. C |
Capillary | DB-1 | 1130. | Zhang and Ho, 1991 | 60. m/0.25 mm/0.25 μm, He, 2. K/min, 220. C @ 10. min; Tstart: 40. C |
Van Den Dool and Kratz RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | CP-Wax 52CB | 1874. | Madruga and Mottram, 1998 | 50. m/0.32 mm/0.21 μm; Program: 0C(5min) => fast => 60C(5min) => 4C/min => 220C(20min) |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 | 1197. | Kubec, Velísek, et al., 1997 | 30. m/0.25 mm/0.25 μm, N2, 40. C @ 3. min, 4. K/min, 240. C @ 10. min |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SE-30 | 1185. | Vinogradov, 2004 | Program: not specified |
Capillary | Methyl Silicone | 1170. | Misharina, 1995 | Program: not specified |
Capillary | Methyl Silicone | 1174. | Misharina, 1995 | Program: not specified |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-Innowax | 1914. | Kubec, Velísek, et al., 1997 | 30. m/0.25 mm/0.5 μm, N2, 40. C @ 3. min, 4. K/min; Tend: 190. C |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Carbowax 20M | 1836. | Vinogradov, 2004 | Program: not specified |
References
Go To: Top, IR Spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Whitfield and Mottram, 2001
Whitfield, F.B.; Mottram, D.S.,
Heterocyclic volatiles formed by heating cysteine or hydrogen sulfide with 4-hydroxy-5-methyl-3(2H)-furanone at pH 6.5,
J. Agric. Food Chem., 2001, 49, 2, 816-822, https://doi.org/10.1021/jf0008644
. [all data]
Whitfield and Mottram, 1999
Whitfield, F.B.; Mottram, D.S.,
Investigation of the reaction between 4-hydroxy-5-methyl-3(2H)-furanone and cysteine or hydrogen sulfide at pH 4.5,
J. Agric. Food Chem., 1999, 47, 4, 1626-1634, https://doi.org/10.1021/jf980980v
. [all data]
Madruga and Mottram, 1998
Madruga, M.S.; Mottram, D.S.,
The effect of pH on the formation of volatile compounds produced by heating a model system containing 5'-imp and cysteine,
J. Braz. Chem. Soc., 1998, 9, 3, 261-271, https://doi.org/10.1590/S0103-50531998000300010
. [all data]
Misharina, Golovnya, et al., 1992
Misharina, T.A.; Golovnya, R.V.; Artamonova, M.P.; Zhuravskaya, N.K.,
Identification of volatile components of a model system with meat aroma,
Zh. Anal. Khim., 1992, 47, 850-857. [all data]
Zhang and Ho, 1991
Zhang, Y.; Ho, C.-T.,
Comparison of the volatile compounds formed from the thermal reaction of glucose with cysteine and glutathione,
J. Agric. Food Chem., 1991, 39, 4, 760-763, https://doi.org/10.1021/jf00004a029
. [all data]
Kubec, Velísek, et al., 1997
Kubec, R.; Velísek, J.; Dolezal, M.; Kubelka, V.,
Sulfur-containing volatiles arising by thermal degradation of alliin and deoxyalliin,
J. Agric. Food Chem., 1997, 45, 9, 3580-3585, https://doi.org/10.1021/jf970071q
. [all data]
Vinogradov, 2004
Vinogradov, B.A.,
Production, composition, properties and application of essential oils, 2004, retrieved from http://viness.narod.ru. [all data]
Misharina, 1995
Misharina, T.A.,
Sorption regularities of sulfur- and oxygen-containing compounds in chromatography and their application in identification of volatile organic compounds, Diss. degree of Dr. Sci. (Chemistry), 1995, 52. [all data]
Notes
Go To: Top, IR Spectrum, Gas Chromatography, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.