4 6-dichloro-5-nitro-2-(propylthio)pyrimidine July 8, 2019 16 32 64 128 4 6-dichloro-5-nitropyrimidine 4 6-dichloro-2-(propylthio)pyrimidin-5-amine 4 6-dichloro-2-methylpyrimidine 4 6-dichloro-5-(2-methoxyphenoxy)-2 2'-bipyrimidine
