2-Cyclopenten-1-one, 2-hydroxy-3,4-dimethyl-
- Formula: C7H10O2
- Molecular weight: 126.1531
- IUPAC Standard InChI: InChI=1S/C7H10O2/c1-4-3-6(8)7(9)5(4)2/h4,9H,3H2,1-2H3
- IUPAC Standard InChIKey: GXUQPCUHTNAVRJ-UHFFFAOYSA-N
- CAS Registry Number: 21835-00-7
- 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: 3,4-Dimethyl-2-hydroxycyclopent-2-en-1-one; 2-Hydroxy-3,4-dimethyl-2-cyclopenten-1-one; 3,4-Dimethyl-2-hydroxy-2-cyclopentenone; 3,4-Dimethylcyclopentenolone (DMCP); 2-Hydroxy-3,4-dimethylcyclopent-2-en-1-one
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Mass spectrum (electron ionization)
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
Spectrum
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Additional Data
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| Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
|---|---|
| Origin | J.A. ENZELL, RES. DEP., SWED. TOB. CO., STOCKHOLM, SWEDEN |
| NIST MS number | 112931 |
Gas Chromatography
Go To: Top, Mass spectrum (electron ionization), 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, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | CP-WAX 57CB | 1789. | Baltes and Mevissen, 1988 | He, 50. C @ 5. min, 2. K/min; Column length: 50. m; Column diameter: 0.24 mm; Tend: 210. C |
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | OV-101 | 1063. | Nishimura and Mihara, 1990 | N2, 2. K/min; Column length: 50. m; Column diameter: 0.23 mm; Tstart: 80. C; Tend: 200. C |
Normal alkane RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | SE-54 | 1075. | Blank, Sen, et al., 1992 | Program: not specified |
Normal alkane RI, polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | HP-FFAP | 1868. | Wanakhachornkrai and Lertsiri, 9999 | 25. m/0.32 mm/0.50 μm, Helium, 15. K/min; Tstart: 45. C; Tend: 220. C |
| Capillary | TC-Wax | 1839. | Ishikawa, Ito, et al., 2004 | 60. m/0.25 mm/0.5 μm, He, 40. C @ 8. min, 3. K/min; Tend: 230. C |
Normal alkane RI, polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | FFAP | 1840. | Blank, Sen, et al., 1992 | Program: not specified |
References
Go To: Top, Mass spectrum (electron ionization), Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Baltes and Mevissen, 1988
Baltes, W.; Mevissen, L.,
Model reactions on roast aroma formation. VI. Volatile reaction products from the reaction of phenylalanine with glucose during cooking and roasting,
Z. Lebensm. Unters. Forsch., 1988, 187, 3, 209-214, https://doi.org/10.1007/BF01043341
. [all data]
Nishimura and Mihara, 1990
Nishimura, O.; Mihara, S.,
Investigation of 2-hydroxy-2-cyclopenten-1-ones in roasted coffee,
J. Agric. Food Chem., 1990, 38, 4, 1038-1041, https://doi.org/10.1021/jf00094a027
. [all data]
Blank, Sen, et al., 1992
Blank, I.; Sen, A.; Grosch, W.,
Potent odorants of the roasted powder and brew of Arabica coffee,
Z. Lebensm. Unters Forsch., 1992, 195, 3, 239-245, https://doi.org/10.1007/BF01202802
. [all data]
Wanakhachornkrai and Lertsiri, 9999
Wanakhachornkrai, P.; Lertsiri, S.,
Comparison of determination method for volatile compounds in Thai soy sauce,
Analytical, Nutritional and Clinical Methods, 9999, 1-11. [all data]
Ishikawa, Ito, et al., 2004
Ishikawa, M.; Ito, O.; Ishizaki, S.; Kurobayashi, Y.; Fujita, A.,
Solid-phase aroma concentrate extraction (SPACE ): a new headspace technique for more sensitive analysis of volatiles,
Flavour Fragr. J., 2004, 19, 3, 183-187, https://doi.org/10.1002/ffj.1322
. [all data]
Notes
Go To: Top, Mass spectrum (electron ionization), Gas Chromatography, References
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