发明人郭海燕,胡光,周伟. "Method for the Synthesis of 1-Methyl-1H-indole-2,3-dione 3-[N-(4-bromophenyl)hydrazone]" [P]. 中国发明专利, 专利号 CN 112593771 B, 授权公告日 2025-02-22.
发明人赵玉洁,张德明,郑宇鹏. "A Process for Preparing High-Purity 1-Methyl-1H-indole-2,3-dione 3-[N-(4-bromophenyl)hydrazone]" [P]. 中国发明专利, 专利号 CN 112866606 B, 授权公告日 2018-12-04.
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