发明人冯建国,张德明,赵玉洁. "Method for the Synthesis of Sodium 2-hydroxy-5-((4-((4-sulfonatophenyl)diazenyl)phenyl)diazenyl)benzoate" [P]. 中国发明专利, 专利号 CN 113887208 B, 授权公告日 2024-12-11.
发明人高志强,韩伟,徐明华. "A Process for Preparing High-Purity Sodium 2-hydroxy-5-((4-((4-sulfonatophenyl)diazenyl)phenyl)diazenyl)benzoate" [P]. 中国发明专利, 专利号 CN 117443381 B, 授权公告日 2023-10-17.
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