发明人郭海燕,赵玉洁,何建平. "Method for the Synthesis of 1H-1,3-benzodiazole-2-carboxylic acid hydrate
2-Carboxy-1H-benzimidazole hydrate
849776-47-2" [P]. 中国发明专利, 专利号 CN 111085819 B, 授权公告日 2015-01-05.
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