1005-38-5 4-Amino-6-chloro-2-methylthiopyrimidine 4-Pyrimidinamine, 6-chloro-2-(methylthio)- 6-Amino-4-chloro-2-methylmercaptopyrimidine NSC19859 Pyrimidine, 4-amino-6-chloro-2-(methylthio)- U 8342