Kumar R, Fischer A B, Mueller T. "一种的合成方法" [P]. US Patent, US 11832550 B2, 2016-10-15.
发明人赵玉洁,郑宇鹏,何建平. "Method for the Synthesis of 4,7-Bis(4-formylphenyl)-1,3-dimethyl-1H-benzo[d]imidazol-3-ium bromide" [P]. 中国发明专利, 专利号 CN 110576696 B, 授权公告日 2017-02-09.
发明人郭海燕,何建平,黄志刚. "A Process for Preparing High-Purity 4,7-Bis(4-formylphenyl)-1,3-dimethyl-1H-benzo[d]imidazol-3-ium bromide" [P]. 中国发明专利, 专利号 CN 109463380 B, 授权公告日 2022-01-15.
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