22550-27-2
1-[(4-nitrophenyl)methyl]benzimidazole
6699-99-6
N'-formyl-formohydrazonic acid ethyl ester
13148-69-1
N'-acetyl-formohydrazonic acid ethyl ester
55711-59-6
N'-benzoyl-formohydrazonic acid ethyl ester
615-28-1
邻苯二胺盐酸盐

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