8,9-epoxy-14-hydroxyabietan-18-oic acid 4a,10a-epoxy-dodecahydro-1-hydroxy-4b,8-dimethyl-2-(1-methylethyl)phenanthrene-8-carboxylic acid
8,9-epoxy-14-hydroxyabietan-18-oic acid 4a,10a-epoxy-dodecahydro-1-hydroxy-4b,8-dimethyl-2-(1-methylethyl)phenanthrene-8-carboxylic acid