120796-25-0 3H-Benz(b)oxireno(h)carbazole-3-carbonitrile, 1a,2,4,9,10,10a-hexahydro-5,10-dihydroxy-1a-methyl-2,4,9-trioxo-, (1aS-(1aalpha,10beta,10aalpha))- Keto-anhydrokinamycin Ketoanhydrokinamycin