发明人徐明华,郭海燕,刘建华. "Method for the Synthesis of 6-Nitro-2H-indazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114695433 A, 授权公告日 2023-01-14.
发明人冯建国,韩伟,张德明. "A Process for Preparing High-Purity 6-Nitro-2H-indazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112391472 A, 授权公告日 2021-04-11.
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