33414-81-2
2,4-dinitro anilino acetic acid ethyl ester
→
~54%
117131-20-1
ethyl 1-hydroxy-6-nitrobenzimidazole-2-carboxylate
97-00-7
1-氯-2,4-二硝基苯
6752-08-5
1-hydroxy-6-nitrobenzimidazole