2-Amino-4-(N-methylpiperazino)-5-methylthio-6-chloropyrimidine 2-Amino-4-chloro-6-(4-methylpiperazino)-5-methylthiopyrimidine 5-25-12-00571 (Beilstein Handbook Reference) 55921-66-9 BRN 0664333 Pyrimidine, 2-amino-4-chloro-6-(4-methylpiperazino)-5-methylthio-