发明人郭海燕,孙丽萍,赵玉洁. "Method for the Synthesis of 1-Ethyl-1H-indazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108126927 A, 授权公告日 2015-06-18.
发明人王建平,张德明,徐明华. "A Process for Preparing High-Purity 1-Ethyl-1H-indazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114752360 B, 授权公告日 2023-07-15.
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