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发明人罗永刚,杨光,刘建华. "Method for the Synthesis of 4-Dimethylaminoazobenzene-4’-carboxylic Acid" [P]. 中国发明专利, 专利号 CN 111938640 A, 授权公告日 2021-07-08.
Davis P L, Williams B T, Thompson G K. "A Process for Preparing High-Purity 4-Dimethylaminoazobenzene-4’-carboxylic Acid" [P]. US Patent, US 10984623 B2, 2016-03-23.
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