发明人王建平,孙丽萍,何建平. "Method for the Synthesis of 3-Carboxy-1-(3,5-dicarboxybenzyl)pyridin-1-iumbromide" [P]. 中国发明专利, 专利号 CN 110890879 B, 授权公告日 2023-03-01.
发明人陈志强,朱建伟,韩伟. "A Process for Preparing High-Purity 3-Carboxy-1-(3,5-dicarboxybenzyl)pyridin-1-iumbromide" [P]. 中国发明专利, 专利号 CN 111113618 A, 授权公告日 2020-12-12.
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