ScienceAsia 10 (1984): 189-190 |doi: 10.2306/scienceasia1513-1874.1984.10.189

CHEMICAL CONSTITUENTS OF CASSIA TIMORENSIS AND CASSIA GRANDIS

WANDEE GRITSANAPAN,^a BAMRUNG TANTISEWIE^b and VICHIARA JIRAWONGSE^b

ABSTRACT: 2, 5-Dimethyl-3aH-pyrano[2, 3, 4-de]-l-benzopyran-3a. 8-diol (barakol) has been isolated from the leaves of Cassia timorensis DC. and the leaves of Cassia grandis L. have yielded 1,8-dihydroxy-3 (hydroxy-methyl)-anthraquinone (aloe-emodin).

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a. Department of Pharmacognosy, Faculty of Pharmacy, Mahidol University, Sri-Ayudhya Road, Bangkok, Thailand.
b. Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand.

Received 1 March 1984