| 英文名称: | | 1-piperazinecarboxylic acid, 4-(1h-benzimidazol-4-yl)-, ethyl ester, (z)-2-bute | | ethyl 4-(1h-benzimidazol-4-yl)-1-piperazinecarboxylate (z)-2-butenedioate (1: | | 1-piperazinecarboxylic acid,4-(1h-benzimidazol-4-yl)-, ethyl ester, (z)-2-butenedioate (1:1) |
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