63268-14-4 97388-52-8 Acetic acid, ((5-methyl-2-(1-methylethyl)cyclohexyl)oxy)-, 7,8-dihydrobenzo(a)pyrene-7,8-diyl ester, (1R-(1alpha(7R*,8R*(1R*,2S*,5R*)),2beta,5alpha))-