HABANENE - CAS 1195-32-0
Flavor & Fragrance
Product Name:
1-Methyl-4-isopropenylbenzene, 2-p-Tolylpropene, Benzene, 1-methyl-4-(1-methylethenyl)-, Dehydro para-cymene, HABANENE, Isopropenyl toluene, p,a-Dimethylstyrene
CAS Number:
Molecular Weight:
Molecular Formula:
Olfactive Family:
Odor description:
Herbaceous, leathery, peppery, with notes of elemi oil and thyme, as well as a touch of citrus.
Taste description:
Characteristic oregano, spicy.
Chemical Structure
CAS 1195-32-0 HABANENE

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Reference Reading

1.Enantioselective biotransformation of aryl-isopropyl, -isopropenyl, and -propenyl groups by the rabbit or by the rat.
Ishida T1, Matsumoto T, Caldwell J, Drake A. Enantiomer. 1998;3(2):133-47.
Thirteen kinds of aromatic compounds (Alkyl- and alkenyl-) were administered to rabbits and the chiralities of their optical active metabolite were determined by the synthesis of the enantiomers or their derivatives. This work has revealed many examples of enantioselective biotransformations and chiral inversion in the rabbits and mechanisms for this inversion have been proposed. The enantioselective hydration of transanethole epoxide was also examined in vitro in rat liver microsomes and possible mechanisms of this process are also discussed.
2.The enantioselective metabolism of 4-isopropenyltoluene in rabbits.
Matsumoto T1, Ishida T, Takeda Y, Yagi J. Biol Pharm Bull. 1994 Nov;17(11):1441-5.
4-Isopropenyltoluene (8) was administered orally to rabbits and the following four optically active metabolites, 2-(p-tolyl)propanoic acid (10), p-(1-carboxyethyl)benzoic acid (11), 2-hydroxy-2-(p-tolyl)propanoic acid (12), and 2-(p-tolyl)-1,2-propanediol (13) were isolated from urine in addition to an optically inactive metabolite, 4-isopropenylbenzoic acid (9). The enantiomeric ratios of the metabolites 10 and 11 were respectively R/S = 33:67 and 39:61 (S predominance), whereas those of the metabolites 12 and 13 possessing a tertiary hydroxyl group were R/S = 77:23 and 84:16 respectively (R predominance). The presumed metabolic pathways of 8 in rabbits leading to these metabolites are discussed.