Benzene, 1-methyl-4-(1-methylethenyl)-
- Formula: C10H12
- Molecular weight: 132.2023
- IUPAC Standard InChIKey: MMSLOZQEMPDGPI-UHFFFAOYSA-N
- CAS Registry Number: 1195-32-0
- 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: p-Cymenene; Styrene, p,α-dimethyl-; α,p-Dimethylstyrene; α,4-Dimethylstyrene; p-Isopropenyl toluene; p-Methyl-α-methylstyrene; p,α-Dimethylstyrene; Dehydro-p-cymene; 1-Methyl-4-isopropenylbenzene; 2-(p-Methylphenyl)propene; 2-p-Tolylpropene; 4-Isopropenyltoluene; 4-Methyl-α-methylstyrene; 1-Methyl-4-(1-methylethenyl)-benzene; 1-methyl-4α-methylstyrene; Methyl-4-(1-methylethenyl)-benzene; para- α-Dimethylstyrene; 4-CH3C6H4C(CH3)CH2; 1-p-Tolyl-1-methylethylene; 4-Methylisopropenylbenzene; NSC 361058; 1-Isopropenyl-4-methylbenzene; Cymenene; α-dimethyl-p-styrene; p,α-Dimethylstyrol; Styrene, α,4-dimethyl; Dimethyl-p-styrene
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Normal alkane RI, polar column, temperature ramp
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-Innowax | TC-FFAP | Supelcowax-10 | Supelcowax-10 | BP-20 |
Column length (m) | 30. | 30. | 30. | 50. | |
Carrier gas | Helium | He | He | He | He |
Substrate | |||||
Column diameter (mm) | 0.25 | 0.25 | 0.2 | 0.25 | 0.22 |
Phase thickness (μm) | 0.25 | 0.25 | 0.2 | 0.25 | 0.25 |
Tstart (C) | 50. | 60. | 70. | 40. | 60. |
Tend (C) | 240. | 220. | 220. | 250. | 220. |
Heat rate (K/min) | 15. | 3. | 3. | 3. | 2. |
Initial hold (min) | 10. | 5. | |||
Final hold (min) | 19. | 30. | 15. | 10. | 20. |
I | 1414. | 1451. | 1442. | 1430. | 1430. |
Reference | Charoensiddhi and Anprung, 2008 | Kurose, Okamura, et al., 2007 | Pinto, Salgueiro, et al., 2007 | Vichi, Riu-Aumatell, et al., 2007 | Boti, Muselli, et al., 2006 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | Supelcowax 10 | BP-20 | HP-Wax | HP-20M | Carbowax 20M |
Column length (m) | 30. | 50. | 30. | 30. | 50. |
Carrier gas | Helium | He | Nitrogen | N2 | |
Substrate | |||||
Column diameter (mm) | 0.20 | 0.22 | 0.25 | 0.25 | 0.2 |
Phase thickness (μm) | 0.20 | 0.25 | 0.25 | 0.25 | 0.25 |
Tstart (C) | 70. | 60. | 50. | 50. | 60. |
Tend (C) | 220. | 220. | 280. | 250. | 250. |
Heat rate (K/min) | 3. | 2. | 5. | 5. | 2. |
Initial hold (min) | 60. | ||||
Final hold (min) | 15. | 20. | 5. | 10. | |
I | 1439. | 1432. | 1459. | 1459. | 1397. |
Reference | Cavaleiro, Pinto, et al., 2006 | Fanciullino, Tomi, et al., 2006 | Marzouk, Mansour, et al., 2006 | Marzouk, Neffati, et al., 2006 | Fernandez, Lizzani-Cuvelier, et al., 2005 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | Supelcowax-10 | BP-20 | Innowax FSC | Supelcowax-10 | Supelcowax-10 |
Column length (m) | 30. | 50. | 60. | 50. | 60. |
Carrier gas | He | Helium | He | He | |
Substrate | |||||
Column diameter (mm) | 0.25 | 0.22 | 0.25 | 0.2 | 0.2 |
Phase thickness (μm) | 0.25 | 0.25 | 0.25 | 0.5 | |
Tstart (C) | 50. | 60. | 60. | 70. | 70. |
Tend (C) | 220. | 220. | 220. | 230. | 220. |
Heat rate (K/min) | 4. | 2. | 4. | 2. | 2. |
Initial hold (min) | 3. | 10. | |||
Final hold (min) | 30. | 20. | |||
I | 1429. | 1430. | 1452. | 1428. | 1428. |
Reference | Wong, Lee, et al., 2005 | Blanc, Muselli, et al., 2004 | Lourens, Reddy, et al., 2004 | Orav, Kailas, et al., 2003 | Orav, Kailas, et al., 2002 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | BP-20 | BP-20 | DB-Wax | Innowax | DB-Wax |
Column length (m) | 50. | 25. | 60. | 60. | 60. |
Carrier gas | He | Nitrogen | Nitrogen | He | He |
Substrate | |||||
Column diameter (mm) | 0.22 | 0.50 | 0.25 | 0.25 | 0.25 |
Phase thickness (μm) | 0.25 | 0.25 | 0.25 | 0.25 | |
Tstart (C) | 60. | 60. | 40. | 60. | 60. |
Tend (C) | 230. | 200. | 200. | 220. | 240. |
Heat rate (K/min) | 2. | 5. | 2. | 4. | |
Initial hold (min) | 10. | 10. | |||
Final hold (min) | 35. | ||||
I | 1432. | 1465. | 1447. | 1452. | 1437. |
Reference | Lota, de Rocca Serra, et al., 2001 | Mallavarapu, Rao, et al., 2000 | Tamura, Boonbumrung, et al., 2000 | Kaya, Baser, et al., 1999 | Ngassoum, Yonkeu, et al., 1999 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | BP-20 | BP-20 | BP-20 | BP-20 | BP-20 |
Column length (m) | 25. | 25. | 25. | 25. | 25. |
Carrier gas | H2 | H2 | H2 | H2 | H2 |
Substrate | |||||
Column diameter (mm) | 0.33 | 0.33 | 0.33 | 0.33 | 0.33 |
Phase thickness (μm) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
Tstart (C) | 80. | 80. | 80. | 80. | 80. |
Tend (C) | 220. | 220. | 220. | 220. | 220. |
Heat rate (K/min) | 5. | 5. | 5. | 5. | 5. |
Initial hold (min) | |||||
Final hold (min) | |||||
I | 1457. | 1457. | 1457. | 1457. | 1457. |
Reference | Bignell, Dunlop, et al., 1998 | Bignell, Dunlop, et al., 1997 | Bignell, Dunlop, et al., 1997, 2 | Bignell, Dunlop, et al., 1997, 3 | Bignell, Dunlop, et al., 1997, 4 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | BP-20 | BP-20 | SP-1000 | Carbowax 20M | FFAP |
Column length (m) | 25. | 25. | 85. | 45. | 50. |
Carrier gas | H2 | He | Hydrogen | ||
Substrate | |||||
Column diameter (mm) | 0.33 | 0.33 | 0.50 | 0.32 | |
Phase thickness (μm) | 0.5 | 0.5 | 1.0 | ||
Tstart (C) | 80. | 80. | 65. | 60. | 50. |
Tend (C) | 220. | 220. | 225. | 200. | 180. |
Heat rate (K/min) | 5. | 5. | 3. | 2. | 10. |
Initial hold (min) | 5. | 1. | |||
Final hold (min) | |||||
I | 1457. | 1457. | 1435. | 1432. | 1468. |
Reference | Bignell, Dunlop, et al., 1997, 5 | Bignell, Dunlop, et al., 1997, 6 | Brophy, Goldsack, et al., 1996 | Kollmannsberger, Nitz, et al., 1992 | Brophy, Davies, et al., 1989 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
References
Go To: Top, Normal alkane RI, polar column, temperature ramp, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Charoensiddhi and Anprung, 2008
Charoensiddhi, S.; Anprung, P.,
Bioacrive compounds and volatile compounds of Thai bael fruit (Aegle marmelos (L.) Correa) as a valuable source for functional food ingredients,
Internat. Food Res. J., 2008, 15, 3, 287-295. [all data]
Kurose, Okamura, et al., 2007
Kurose, K.; Okamura, D.; Yatagai, M.,
Composition of the essential oils from the leaves of nine Pinus species and the cones of three of Pinus species,
Flavour Fragr. J., 2007, 22, 1, 10-20, https://doi.org/10.1002/ffj.1609
. [all data]
Pinto, Salgueiro, et al., 2007
Pinto, E.; Salgueiro, L.R.; Cavaleiro, C.; Palmeira, A.; Goncalves, M.J.,
In vitro susceptibility of some species of yeasts and filamentous fungi to essential oils of Salvia of?cinalis,
Ind. Crops Prod., 2007, 26, 2, 135-141, https://doi.org/10.1016/j.indcrop.2007.02.004
. [all data]
Vichi, Riu-Aumatell, et al., 2007
Vichi, S.; Riu-Aumatell, M.; Mora-Pons, M.; Guadayol, J.M.; Buxaderas, S.; López-Tamames, E.,
Analytical, Nutritional and Clinical Methods. HS-SPME coupled to GC/MS for quality control of Juniperus communis L. berries used for gin aromatization,
Food Chem., 2007, 105, 4, 1748-1754, https://doi.org/10.1016/j.foodchem.2007.03.026
. [all data]
Boti, Muselli, et al., 2006
Boti, J.B.; Muselli, A.; Tomi, F.; Koukoua, G.; N'Guessan, T.Y.; Costa, J.; Casanova, J.,
Combined analysis of Cymbopogon giganteus Chiov. leaf oil from Ivory Coast by GC/RI, GC/MS and 13C-NMR,
C.R. Chim., 2006, 9, 1, 164-168, https://doi.org/10.1016/j.crci.2005.10.003
. [all data]
Cavaleiro, Pinto, et al., 2006
Cavaleiro, C.; Pinto, E.; Gonsales, M.J.; Salguero, L.,
Antifungal activity of Juniperus essential oils agains dermatophyte, Asrgillus and Candida strains,
J. Appl. Microbiol., 2006, 100, 6, 1333-1338, https://doi.org/10.1111/j.1365-2672.2006.02862.x
. [all data]
Fanciullino, Tomi, et al., 2006
Fanciullino, A.-L.; Tomi, F.; Luro, F.; Desjobert, J.M.; Casanova, J.,
Chemical variability of peel and leaf oils of mandarins,
Flavour Fragr. J., 2006, 21, 2, 359-367, https://doi.org/10.1002/ffj.1658
. [all data]
Marzouk, Mansour, et al., 2006
Marzouk, Z.; Mansour, H.B.; Chraief, I.; Mosrati, R.; Cheriaa, J.; Neffati, A.; Marzouk, B.; Sfari, M.; Boukef, K.; Barillies, D.; Ghedira, L.C.,
Chemical composition, antibacterial and antimutagenic activities of four populations of Rosmarinus officinalis L. oils from Tunisia,
J. Food Agriculture Environment, 2006, 4, 2, 89-94. [all data]
Marzouk, Neffati, et al., 2006
Marzouk, Z.; Neffati, A.; Marzouk, B.; Chraief, I.; Fathia, K.; Ghedira, L.C.; Boukef, K.,
Chemical composition and antibacterial and antimutagenic activity of Tunisian Rosmarinus officinalis L. oil from Kasrine,
Journal of Food, Agriculture Environment, 2006, 4, 34, 61-65. [all data]
Fernandez, Lizzani-Cuvelier, et al., 2005
Fernandez, X.; Lizzani-Cuvelier, L.; Loiseau, A.-M.; Perichet, C.; Delbecque, C.; Arnaudo, J.-F.,
Chemical composition of the essential oils from Turkish and Honduras Styrax,
Flavour Fragr. J., 2005, 20, 1, 70-73, https://doi.org/10.1002/ffj.1370
. [all data]
Wong, Lee, et al., 2005
Wong, K.C.; Lee, B.C.; Lam, N.F.; Ibrahim, P.,
Essential oils of the rhizomes of Alpinia conchigera Griff. and Alpinia latilabris Ridl.,
Flavour Fragr. J., 2005, 20, 4, 431-433, https://doi.org/10.1002/ffj.1458
. [all data]
Blanc, Muselli, et al., 2004
Blanc, M.-C.; Muselli, A.; Bradesi, P.; Casanova, J.,
Chemical composition and variability of the essential oil of Inula graveolens from Corsica,
Flavour Fragr. J., 2004, 19, 4, 314-319, https://doi.org/10.1002/ffj.1304
. [all data]
Lourens, Reddy, et al., 2004
Lourens, A.C.U.; Reddy, D.; Baser, K.H.C.; Viljoen, A.M.; Van Vuuren, S.F.,
In vitro Biological Activity and Essential Oil Composition of Four Indigenous South Africal Helichrysum Species,
J. Ethnopharmacol., 2004, 95, 2-3, 253-258, https://doi.org/10.1016/j.jep.2004.07.027
. [all data]
Orav, Kailas, et al., 2003
Orav, A.; Kailas, T.; Jegorova, A.,
Composition of the essential oil of dill, celery, and parsley from Estonia,
Proc. Est. Acad. Sci. Chem., 2003, 52, 4, 147-154. [all data]
Orav, Kailas, et al., 2002
Orav, A.; Kailas, T.; Müürisepp, M.,
Composition of blackcurrant aroma isolated from leaves, buds, and berries of Ribes nigrum L.,
Proc. Est. Acad. Sci. Chem., 2002, 51, 4, 225-234. [all data]
Lota, de Rocca Serra, et al., 2001
Lota, M.-L.; de Rocca Serra, D.; Tomi, F.; Casanova, J.,
Chemical variability of peel and leaf essential oils of 15 species of mandarins,
Biochem. Syst. Ecol., 2001, 29, 1, 77-104, https://doi.org/10.1016/S0305-1978(00)00029-6
. [all data]
Mallavarapu, Rao, et al., 2000
Mallavarapu, G.R.; Rao, L.; Ramesh, S.,
Volatile constituents of the leaf and fruit oils of Murraya koenigii Spreng.,
L. Ess. Oil Res., 2000, 12, 6, 766-768, https://doi.org/10.1080/10412905.2000.9712211
. [all data]
Tamura, Boonbumrung, et al., 2000
Tamura, H.; Boonbumrung, S.; Yoshizawa, T.; Varanyanond, W.,
Volatile components of the essential oil in the pulp of four yellow mangoes (Mangifera indica L.) in Thailand,
Food Sci. Technol. Res., 2000, 6, 1, 68-73, https://doi.org/10.3136/fstr.6.68
. [all data]
Kaya, Baser, et al., 1999
Kaya, A.; Baser, K.H.C.; Demirci, B.; Koca, F.,
The essential oil of Acinos alpinus (L.) Moench growing in Turkey,
Flavour Fragr. J., 1999, 14, 1, 55-59, https://doi.org/10.1002/(SICI)1099-1026(199901/02)14:1<55::AID-FFJ784>3.0.CO;2-Q
. [all data]
Ngassoum, Yonkeu, et al., 1999
Ngassoum, M.B.; Yonkeu, S.; Jirovetz, L.; Buchbauer, G.; Schmaus, G.; Hammerschmidt, F.-J.H.,
Chemical composition of essential oils of Lantana camara leaves and flowers from Cameroon and Madagascar,
Flavour Fragr. J., 1999, 14, 4, 245-250, https://doi.org/10.1002/(SICI)1099-1026(199907/08)14:4<245::AID-FFJ819>3.0.CO;2-X
. [all data]
Bignell, Dunlop, et al., 1998
Bignell, C.M.; Dunlop, P.J.; Brophy, J.J.,
Volatile leaf oils of some South-Western and Southern Australian species of the genus Eucalyptus (Series 1). Part XIX,
Flavour Fragr. J., 1998, 13, 2, 131-139, https://doi.org/10.1002/(SICI)1099-1026(199803/04)13:2<131::AID-FFJ710>3.0.CO;2-X
. [all data]
Bignell, Dunlop, et al., 1997
Bignell, C.M.; Dunlop, P.J.; Brophy, J.J.; Fookes, C.J.R.,
Volatile leaf oils of some South-Western and Southern Australian species of the genus Eucalyptus (Series I). Part XIV: Subgenus Monocalyptus,
Flavour Fragr. J., 1997, 12, 3, 177-183, https://doi.org/10.1002/(SICI)1099-1026(199705)12:3<177::AID-FFJ626>3.0.CO;2-9
. [all data]
Bignell, Dunlop, et al., 1997, 2
Bignell, C.M.; Dunlop, P.J.; Brophy, J.J.,
Volatile leaf oils of some South-Western and Southern Australian species of the genus Eucalyptus (Series I). Part XV: Subgenus symphyomyrtus, section bisectaria, series levispermae,
Flavour Fragr. J., 1997, 12, 3, 185-193, https://doi.org/10.1002/(SICI)1099-1026(199705)12:3<185::AID-FFJ627>3.0.CO;2-B
. [all data]
Bignell, Dunlop, et al., 1997, 3
Bignell, C.M.; Dunlop, P.J.; Brophy, J.J.,
Volatile leaf oils of some South-Western and Southern Australian species of the genus Eucalyptus (Series I). Part XVI: Subgenus symphyomyrtus, section bisectaria, series cneorifoliae, series porantherae and series falcatae,
Flavour Fragr. J., 1997, 12, 261-267. [all data]
Bignell, Dunlop, et al., 1997, 4
Bignell, C.M.; Dunlop, P.J.; Brophy, J.J.,
Volatile leaf oils of some South-Western and Southern Australian species of the genus Eucalyptus (Series I). Part XVII: Subgenus symphyomyrtus (i) section bisectaria, series calycogonae and (ii) section dumaria, series dumosae, series rigentes and series ovulares,
Flavour Fragr. J., 1997, 12, 269-275. [all data]
Bignell, Dunlop, et al., 1997, 5
Bignell, C.M.; Dunlop, P.J.; Brophy, J.J.,
Volatile leaf oils of some Queensland and Norther Australian species of the genus Eucalyptus (Series II) Part II. Subgenera (a) Blakella, (b) Corymbia, (c) Unnamed, (d) Idiogenes, (e) Monocalyptus and (f) Symphyomyrtus,
Flavour Fragr. J., 1997, 12, 4, 277-284, https://doi.org/10.1002/(SICI)1099-1026(199707)12:4<277::AID-FFJ642>3.0.CO;2-B
. [all data]
Bignell, Dunlop, et al., 1997, 6
Bignell, C.M.; Dunlop, P.J.; Brophy, J.J.,
Volatile leaf oils of some south-western and southern Australian speices of the genus Eucalyptus (Series I). Part XVIII. A. Subgenus monocalyptus. B. Subgenus Symphyomyrtus: (i) section Guilfoyleanae; (ii) section bisectaria, series accedentes, series occidentales, series levispermae, series loxophlebae, series macrocarpae, series orbifoliae, series calycogonae; (iii) section dumaria, series incrassatae and series ovulares,
Flavour Fragr. J., 1997, 12, 423-432. [all data]
Brophy, Goldsack, et al., 1996
Brophy, J.J.; Goldsack, R.J.; Bean, A.R.; Forster, P.I.; Fookes, C.J.R.,
The leaf essential oils of the genus Syncarpia ten. (Myrtaceae),
Flavour Fragr. J., 1996, 11, 6, 361-366, https://doi.org/10.1002/(SICI)1099-1026(199611)11:6<361::AID-FFJ591>3.0.CO;2-T
. [all data]
Kollmannsberger, Nitz, et al., 1992
Kollmannsberger, H.; Nitz, S.; Drawert, F.,
UBer die Aromastoffzusammensetzung von Hochdruckextrakten. I. Pfeffer (Piper nigrum, Var. muntok),
Z. Lebensm. Unters Forsch., 1992, 194, 6, 545-551, https://doi.org/10.1007/BF01185481
. [all data]
Brophy, Davies, et al., 1989
Brophy, J.J.; Davies, N.W.; Southwell, I.A.; Stiff, I.A.; Williams, L.R.,
Gas chromatographic quality control for oil of Melaleuca terpinen-4-ol type (Australian tea tree),
J. Agric. Food Chem., 1989, 37, 5, 1330-1335, https://doi.org/10.1021/jf00089a027
. [all data]
Notes
Go To: Top, Normal alkane RI, polar column, temperature ramp, References
- Symbols used in this document:
Tend Final temperature Tstart Initial temperature - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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