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发明人何建平,高志强,王建平. "A Process for Preparing High-Purity 4-(Difluoromethyl)-3-nitro-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 113344367 A, 授权公告日 2017-10-09.
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