发明人张德明,胡光,韩伟. "Method for the Synthesis of Ethyl 5-chloro-1-(4-nitrophenyl)-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 110152563 B, 授权公告日 2021-03-27.
发明人罗永刚,朱建伟,唐晓军. "A Process for Preparing High-Purity Ethyl 5-chloro-1-(4-nitrophenyl)-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 109404719 A, 授权公告日 2023-07-10.
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