上游原料
Ethyl hydrazinecarboxylate; Ethyl 1-hydrazinecarboxylate4-chloro-N(2)-propyl-1,2-benzenediamine; N-(2-amino-5-chlorophenyl)-N-propylamineOxalyl chloride; 2-Chloro-2-oxoacetyl chloride7-chloro-1-propyl-1,4-dihydro-2,3-quinoxalinedione3,7-dichloro-1-propyl-2(1H)-quinoxalinoneethyl 2-(6-chloro-3-oxo-4-propyl-3,4-dihydro-2-quinoxalinyl)-1-hydrazinecarboxylate
