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发明人徐明华,罗永刚,韩伟. "Method for the Synthesis of 2-[(E)-(3-Bromo-2-hydroxy-5-methoxyphenyl)methylidene]-1-hydrazinecarbothioamide" [P]. 中国发明专利, 专利号 CN 114010904 B, 授权公告日 2019-02-06.
发明人刘建华,李文辉,黄志刚. "A Process for Preparing High-Purity 2-[(E)-(3-Bromo-2-hydroxy-5-methoxyphenyl)methylidene]-1-hydrazinecarbothioamide" [P]. 中国发明专利, 专利号 CN 109951719 A, 授权公告日 2021-07-05.
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