(2S,4AS,6AS,8AR,10S,12AS,14AS,14BR)-10-HYDROXY-2,4A,6A,9,9,12A,14A-HEPTAMETHYL-1,2,3,4,4A,5,6,6A,7,8,8A,9,10,11,12,12A,13,14,14A,14B-ICOSAHYDROPICENE-2-CARBOXYLIC ACID