发明人罗永刚,徐明华,李文辉. "Method for the Synthesis of 4-(Difluoromethyl)-6-hydroxy-5-nitronicotinaldehyde" [P]. 中国发明专利, 专利号 CN 116237389 B, 授权公告日 2024-12-01.
发明人冯建国,钱学锋,周伟. "A Process for Preparing High-Purity 4-(Difluoromethyl)-6-hydroxy-5-nitronicotinaldehyde" [P]. 中国发明专利, 专利号 CN 112773889 A, 授权公告日 2025-07-02.
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