上游原料
methyl chlorocarbonate;Carbonochloridic acid methyl ester；[(chlorocarbonyl)oxy]methane；methyl chloroformateDiethyl oxalate; Ethyl 2-ethoxy-2-oxoacetatemethyl 2-nitriloacetate; carbonocyanic acid, methyl estermethyl 2-nitriloacetateethyl 2-ethoxy-2-oxoacetateDiethyl oxalate; Ethyl 2-ethoxy-2-oxoacetate4,5-dichloro-1,2-benzenediamine; 4,5-Dichloro-o-phenylenediamine; 2-amino-4,5-dichlorophenylamine5,6-dichloro-2,1,3-benzoselenadiazole5,6-dichloro-4-nitro-2,1,3-benzoselenadiazole2-amino-4,5-dichloro-3-nitrophenylamine; 4,5-dichloro-3-nitro-1,2-benzenediamineethyl 2-ethoxy-2-oxoacetateDiethyl oxalate; Ethyl 2-ethoxy-2-oxoacetate4,5-dichloro-1,2-benzenediamine; 4,5-Dichloro-o-phenylenediamine; 2-amino-4,5-dichlorophenylamine6,7-dichloro-1,4-dihydro-2,3-quinoxalinedioneethyl 2-ethoxy-2-oxoacetate
