发明人刘建华,何建平,孙丽萍. "一种卡巴克洛杂质N8的合成方法" [P]. 中国发明专利, 专利号 CN 115229921 A, 授权公告日 2015-07-07.
发明人赵玉洁,王建平,杨光. "Method for the Synthesis of Carbazochrome Impurity N8" [P]. 中国发明专利, 专利号 CN 115603187 A, 授权公告日 2019-03-24.
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