2,4-Diphenyl-5,6-dihydro-4H-naphtho(1,2-b)thiopyran 4H-Naphtho(1,2-b)thiopyran, 5,6-dihydro-2,4-diphenyl- 65193-63-7 7,8-Benzo-2,4-diphenyl-5,6-dihydro-2-thiochromene BRN 1391363