STUDIES ON THE CHEMICAL COMPONENTS OF DAN-SHEN (Salvia miltiorrhiza BUNGE)
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Abstract
A new crystalline substance was isolated from the ethereal extract of the Chinese drug Dan-shen. It is composed of two isomers. The structures of the two isomers were established by spectral analyses, one of them is methylenetanshinquinone, the other is 1,2- dihydrotanshinquinone.
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