发明人何建平,冯建国,张德明. "Method for the Synthesis of 1-ethenyl-3-methyl-1h-imidazol-3-ium methyl sulfate
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AR-1C2791" [P]. 中国发明专利, 专利号 CN 114555974 A, 授权公告日 2017-12-20.
发明人张德明,杨光,孙丽萍. "A Process for Preparing High-Purity 1-ethenyl-3-methyl-1h-imidazol-3-ium methyl sulfate
5661-55-2
AR-1C2791" [P]. 中国发明专利, 专利号 CN 116757056 B, 授权公告日 2025-10-07.
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