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Two new polyhydroxysteroids, 12β,16β,20-trihydroxycholesta-1,4-dien-3-one 16-acetate(1) and 24- methyl-12β,16β,20-trihydroxycholesta-1,4-dien-3-one(2) were isolated from octocoral Sinularia sp. Their structures were elucidated primarily on the basis of 1D