发明人张德明,沈红梅,韩伟. "Method for the Synthesis of (E)-3-((4-(phenylamino)naphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonic acid" [P]. 中国发明专利, 专利号 CN 110287177 B, 授权公告日 2022-06-25.
发明人张德明,徐明华,郑宇鹏. "A Process for Preparing High-Purity (E)-3-((4-(phenylamino)naphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonic acid" [P]. 中国发明专利, 专利号 CN 111459572 A, 授权公告日 2018-02-23.
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