Abstract
Nonanthraquinonic constituents isolated from the heartwood of Cassia garrettiana CRAIB. (Leguminosae) together with several anthraquinones were shown to be betulic acid, rhamnocitrin, rhamnetin, protocatechuic aldehyde, quercetin, 3, 3'-dihydroxybibenzyl, 3, 3', 4-trihydroxybibenzyl, 3, 3', 4, 5'-tetrahydroxybibenzyl, 3, 3', 4, 5'-tetrahydroxystilbene, and 2, 3, 5, 7-tetrahydroxy-9, 10-dihydrophenanthrene (which was isolated and identified as tetraacetate).
