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tert-Butyldimethylsilyl chloride Pirimiphos-methyl 2-Chloro-5-(chloromethyl)pyridine 4-Chloropyrimidine Ethyl 4-chloro-2-methylthio-5-pyrimidinecarboxylate 4,6-DICHLORO-2-METHYLTHIO-5-PHENYLPYRIMIDINE 4,6-Dichloro-2-methylpyrimidine Chloromethyl methyl ether 5-Amino-4,6-dichloro-2-methylpyrimidine 2-Chloro-6-methylpyrimidine-4,5-diamine