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发明人林芳,徐明华,孙丽萍. "A Process for Preparing High-Purity 2-(Difluoromethyl)-1-methyl-1h-1,3-benzodiazole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116983207 A, 授权公告日 2020-09-04.
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