Synonyms: (+)-Lambertic acid;(1S)-1,2,3,4,4a,9,10,10aα-Octahydro-6-hydroxy-1,4aβ-dimethyl-7-isopropyl-1-phenanthrenecarboxylic acid;[1S,(+)]-1,2,3,4,4a,9,10,10aα-Octahydro-6-hydroxy-1,4aβ-dimethyl-7-(1-methylethyl)-1β-phenanthrenecarboxylic acid;Lambertic acid