发明人何建平,孙丽萍,张德明. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113301509 A, 授权公告日 2025-08-21.
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发明人钱学锋,周伟,徐明华. "A Process for Preparing High-Purity 4-Formyl-3,5-dimethyl-1H-pyrrole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112129517 B, 授权公告日 2018-06-05.
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