176637-10-8

8-Chloro-2-(methylthio) 8-Chloro-2-(methylthio)pyrimido[5,4-d]pyrimidine 4-Chloro-6-(methylthio)pyrimido[5,4-d]pyrimidine 4-chloro-6-methylsulfanylpyrimido[5,4-d]pyrimidine Pyrimido[5,4-d]pyrimidine, 8-chloro-2-(methylthio)- 8-chloro-2-(Methylsulfanyl)-[1,3]diazino[5,4-d]pyriMidine