19017-40-4 2(1H)-Pyrimidinethione, 3,4-dihydro-1-(4-methylphenyl)-4,4,6-trimethyl- 2(1H)-Pyrimidinethione, 3,4-dihydro-1-(p-tolyl)-4,4,6-trimethyl- 3,4-Dihydro-1-(p-tolyl)-4,4,6-trimethyl-2(1H)-pyrimidinethione