2H-Naphtho(1,2-b)thiopyran, 3,4,4a,5,6,10b-hexahydro-4-(p-methoxyphenyl)-2-phenyl- 4-(p-Methoxyphenyl)-2-phenyl-3,4,4a,5,6,10b-hexahydro-2H-naphtho(1,2-b)thiopyran QM0691000