Nielsen H, Björnsson E, Sørensen M. "Method for the Synthesis of Methyl (2Z)-2-[2-(2,4-dimethylphenyl)hydrazin-1-ylidene]-3-oxobutanoate" [P]. European Patent, EP 3057521 A1, 2025-12-06.
发明人林芳,赵玉洁,徐明华. "A Process for Preparing High-Purity Methyl (2Z)-2-[2-(2,4-dimethylphenyl)hydrazin-1-ylidene]-3-oxobutanoate" [P]. 中国发明专利, 专利号 CN 114234825 A, 授权公告日 2021-09-20.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2020, 1583, (9), 3258-3284.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2021, 1621, 8189-8204.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Methyl (2Z)-2-[2-(2,4-dimethylphenyl)hydrazin-1-ylidene]-3-oxobutanoate Using HRMS and NMR". Anal. Methods, 2013, 797, (11), 4097-4119.