1-[p-(Phenylazo)phenyl]-2-thio-4,4,6-trimethyl dihydropyrimidine 2(1H)-Pyrimidinethione, 3,4-dihydro-1-[(p-phenylazo)phenyl]-4,4,6-trimethyl- 2(1H)-Pyrimidinethione, 3,4-dihydro-4,4,6-trimethyl-1-[4-(phenylazo)phenyl]- 63704-51-8 NSC49832 Usaf K-1354