发明人郑宇鹏,张德明,孙丽萍. "Method for the Synthesis of 6-Ethoxy-1H-benzo[d]imidazole-2-sulfonic acid" [P]. 中国发明专利, 专利号 CN 112459978 B, 授权公告日 2024-06-04.
发明人黄志刚,罗永刚,杨光. "A Process for Preparing High-Purity 6-Ethoxy-1H-benzo[d]imidazole-2-sulfonic acid" [P]. 中国发明专利, 专利号 CN 114234822 A, 授权公告日 2018-01-03.
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