1-Phenanthrenecarboxylic acid,1,2,3,4,4a,4b,5,6,7,8,10,10a-dodecahydro- 1,4a-dimethyl-7-(1-methylethyl)-,(1R,4aR,- 4bS,7R,10aR)-
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(13β)-Abiet-7-en-18-oic acid