发明人郭海燕,杨光,李文辉. "一种分散黄56-甲基的合成方法" [P]. 中国发明专利, 专利号 CN 112021675 A, 授权公告日 2022-08-03.
发明人何建平,高志强,周伟. "Method for the Synthesis of Disperse Yellow 56-methyl" [P]. 中国发明专利, 专利号 CN 111973195 A, 授权公告日 2017-08-23.
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