3-Penten-2-one, 4-methyl-
- Formula: C6H10O
- Molecular weight: 98.1430
- IUPAC Standard InChIKey: SHOJXDKTYKFBRD-UHFFFAOYSA-N
- CAS Registry Number: 141-79-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: Acetone, isopropylidene-; Isobutenyl methyl ketone; Isopropylideneacetone; Mesityl oxide; Methyl isobutenyl ketone; Methyl 2-methyl-1-propenyl ketone; 4-Methyl-3-penten-2-one; (CH3)2C=CHC(=O)CH3; Methyl 2,2-dimethylvinyl ketone; 4-Methyl-3-pentene-2-one; 2-Methylpent-2-en-4-one; 2-Methyl-2-penten-4-one; Mesityloxid; Mesityloxyde; MIBK; Ossido di mesitile; Oxyde de mesityle; 3-Isohexen-2-one; 4-Methyl-3-penten-2-on; 4-Methylpent-3-en-2-one; 4-Metil-3-penten-2-one; 2-Methyl-2-pentenone-4; UN 1229; 2-Methyl-4-oxo-2-pentene; 2,2-Dimethylvinyl methyl ketone; NSC 38717; 4-methyl-3-penten-2-one (mesityl oxide)
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- 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.
Normal alkane RI, non-polar column, custom temperature program
Go To: Top, 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
| Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|---|
| Active phase | HP-5 | HP-5 | DB-5 MS | DB-5 MS | RTX-5 |
| Column length (m) | 30. | 30. | 30. | 30. | 30. |
| Carrier gas | Helium | Helium | N2 | ||
| Substrate | |||||
| Column diameter (mm) | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| Phase thickness (μm) | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| Program | 40 0C (2 min) 5 0C/min -> 80 0C 7 oC/min -> 160 0C 9 0C/min -> 200 0C 20 0C/min -> 280 0C (10 min) | not specified | 50 0C (2.8 min) 5.5 0C/min -> 140 0C (1 min) 4.5 oC/min -> 220 0C -> 225 0C (2 min) 3.4 0C/min -> 265 0C (5 min) | 50 0C (2.8 min) 5.5 0C/min -> 140 0C (1 min) 4.5 oC/min -> 220 0C -> 225 0C (2 min) 3.4 0C/min -> 265 0C (5 min) | not specified |
| I | 798. | 804. | 782. | 797. | 798. |
| Reference | Zhao, Li, et al., 2008 | Zhao, Li, et al., 2008 | Zhu, Li, et al., 2008 | Zhu, Li, et al., 2008 | Ádámová, Orinák, et al., 2005 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|---|
| Active phase | RTX-5 | RTX-5 MS | BPX-5 | BPX-5 | Methyl Silicone |
| Column length (m) | 30. | 60. | 60. | 60. | |
| Carrier gas | N2 | He | He | He | |
| Substrate | |||||
| Column diameter (mm) | 0.25 | 0.25 | 0.32 | 0.32 | |
| Phase thickness (μm) | 0.25 | 0.5 | 1. | 1. | |
| Program | not specified | 35C (3min) => 10C/min => 50C => 4C/min => 200C => 50C/min => 250C (10min) | 40C (4min) => 2C/min => 90C => 4C/min => 130C => 8C/min => 250 C (10min) | 40C (4min) => 2C/min => 90C => 4C/min => 130C => 8C/min => 250 C (10min) | not specified |
| I | 798. | 802. | 798. | 798. | 783. |
| Reference | Ádámová, Orinák, et al., 2005 | Machiels and Istasse, 2003 | Machiels, van Ruth, et al., 2003 | Machiels, van Ruth, et al., 2003 | Zenkevich, 1999 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary | Capillary |
|---|---|---|
| Active phase | HP-5 | Polydimethyl siloxanes |
| Column length (m) | 50. | |
| Carrier gas | He | |
| Substrate | ||
| Column diameter (mm) | 0.32 | |
| Phase thickness (μm) | 0.52 | |
| Program | 35 0C 10 0C/min -> 200 0C (20 min) 5 0C/min -> 230 0C (50 min) | not specified |
| I | 804. | 783. |
| Reference | Timón, Ventanas, et al., 1998 | Zenkevich, 1997 |
| Comment | MSDC-RI | MSDC-RI |
References
Go To: Top, Normal alkane RI, non-polar column, custom temperature program, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Zhao, Li, et al., 2008
Zhao, Y.; Li, J.; Xu, Y.; Duan, H.; Fan, W.; Zhao, G.,
EXtraction, preparation and identification of volatile compounds in Changyu XO brandy,
Chinese J. Chromatogr., 2008, 26, 2, 212-222, https://doi.org/10.1016/S1872-2059(08)60014-0
. [all data]
Zhu, Li, et al., 2008
Zhu, M.; Li, E.; He, H.,
Determination of volatile chemical constitutes in tea by simultaneous distillation extraction, vacuum hydrodistillation and thermal desrption,
Chromatographia, 2008, 68, 7/8, 603-610, https://doi.org/10.1365/s10337-008-0732-1
. [all data]
Ádámová, Orinák, et al., 2005
Ádámová, M.; Orinák, A.; Halás, L.,
Retention indices as identification tool in pyrolysis-capillary gas chromatography,
J. Chromatogr. A, 2005, 1087, 1-2, 131-141, https://doi.org/10.1016/j.chroma.2005.01.003
. [all data]
Machiels and Istasse, 2003
Machiels, D.; Istasse, L.,
Evaluation of two commercial solid-phase microextraction fibres for the analysis of target aroma compounds in cooked beef meat,
Talanta, 2003, 61, 4, 529-537, https://doi.org/10.1016/S0039-9140(03)00319-9
. [all data]
Machiels, van Ruth, et al., 2003
Machiels, D.; van Ruth, S.M.; Posthumus, M.A.; Istasse, L.,
Gas chromatography-olfactometry analysis of the volatile compounds of two commercial Irish beef meats,
Talanta, 2003, 60, 4, 755-764, https://doi.org/10.1016/S0039-9140(03)00133-4
. [all data]
Zenkevich, 1999
Zenkevich, I.G.,
New Application of the Retention Index Concept in Gas and High Performance Liquid Chromatography,
Fresenius' J. Anal. Chem., 1999, 365, 4, 305-309, https://doi.org/10.1007/s002160051491
. [all data]
Timón, Ventanas, et al., 1998
Timón, M.L.; Ventanas, J.; Martín, L.; Tejeda, J.F.; García, C.,
Volatile compounds in supercritical carbon dioxide extracts of Iberian ham,
J. Agric. Food Chem., 1998, 46, 12, 5143-5150, https://doi.org/10.1021/jf980652v
. [all data]
Zenkevich, 1997
Zenkevich, I.G.,
Influence of the Variations of Dynamics Molecular Parameterts on the Additivity of Chromatigraphic Retention Indices of Products of Organic Reactions Relative to Initial Reagents,
Dokl. Akad. Nauk (Rus.), 1997, 353, 5, 625-627. [all data]
Notes
Go To: Top, Normal alkane RI, non-polar column, custom temperature program, 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.
© 2026 by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved.
Copyright for NIST Standard Reference Data is governed by the Standard Reference Data Act.
