发明人徐明华,何建平,郑宇鹏. "Method for the Synthesis of 5-Bromo-4-(diethylamino)pyridine-3-sulfonic acid" [P]. 中国发明专利, 专利号 CN 109521889 B, 授权公告日 2019-05-07.
发明人徐明华,何建平,刘建华. "A Process for Preparing High-Purity 5-Bromo-4-(diethylamino)pyridine-3-sulfonic acid" [P]. 中国发明专利, 专利号 CN 111971097 B, 授权公告日 2018-07-17.
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