发明人韩伟,钱学锋,林芳. "Method for the Synthesis of Ethyl 3-(chlorosulfonyl)-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 109158508 B, 授权公告日 2019-04-03.
发明人刘建华,郭海燕,孙丽萍. "A Process for Preparing High-Purity Ethyl 3-(chlorosulfonyl)-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 111680664 A, 授权公告日 2017-04-27.
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