发明人王建平,林芳,刘建华. "一种卡巴克洛杂质N6的合成方法" [P]. 中国发明专利, 专利号 CN 111391996 A, 授权公告日 2015-02-08.
发明人高志强,徐明华,郑宇鹏. "Method for the Synthesis of Carbazochrome Impurity N6" [P]. 中国发明专利, 专利号 CN 114401754 A, 授权公告日 2024-09-03.
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