发明人何建平,罗永刚,胡光. "一种2-羟基-3-甲氧基苯磺酸钾盐的合成方法" [P]. 中国发明专利, 专利号 CN 114373653 A, 授权公告日 2022-06-20.
发明人黄志刚,林芳,李文辉. "Method for the Synthesis of 2-Hydroxy-3-Methoxybenzenesulfonic Acid Potassium Salt" [P]. 中国发明专利, 专利号 CN 111200928 A, 授权公告日 2023-01-26.
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