发明人赵玉洁,周伟,何建平. "Method for the Synthesis of 1-Phenyl-1H-indole-2,3-dione 3-[N-(2-methylphenyl)hydrazone]" [P]. 中国发明专利, 专利号 CN 112539021 B, 授权公告日 2017-06-22.
发明人张德明,黄志刚,冯建国. "A Process for Preparing High-Purity 1-Phenyl-1H-indole-2,3-dione 3-[N-(2-methylphenyl)hydrazone]" [P]. 中国发明专利, 专利号 CN 116534950 B, 授权公告日 2019-05-02.
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