发明人郭海燕,孙丽萍,何建平. "Method for the Synthesis of Ethyl (2Z)-2-chloro-2-[2-(4-ethylphenyl)hydrazin-1-ylidene]acetate" [P]. 中国发明专利, 专利号 CN 108815139 A, 授权公告日 2015-05-01.
发明人朱建伟,林芳,黄志刚. "A Process for Preparing High-Purity Ethyl (2Z)-2-chloro-2-[2-(4-ethylphenyl)hydrazin-1-ylidene]acetate" [P]. 中国发明专利, 专利号 CN 116095487 B, 授权公告日 2025-09-27.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2019, 524, 1952-1976.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2022, 1467, 3013-3035.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl (2Z)-2-chloro-2-[2-(4-ethylphenyl)hydrazin-1-ylidene]acetate Using HRMS and NMR". Chromatographia, 2023, 1219, (1), 8634-8647.