1-(2-Sulfo-4-methylphenyl)-2-thio-4,4,6-trimethyl dihydropyrimidine 2(1H)-Pyrimidinethione, 3,4-dihydro-1-(4-methyl-2-sulfophenyl)-4,4,6-trimethyl- 6281-59-0 Benzenesulfonic acid, 2-(2-mercapto-4,4,6-trimethyl-1(4H)-pyrimidinyl)-5-methyl- NSC5821 Usaf K-2600