Brown S R, Mueller T, Patel M V. "Method for the Synthesis of 3,4-Dimethylthiophene-2,5-dicarboxylic acid" [P]. US Patent, US 10030084 B2, 2022-04-21.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2015, 1982, (12), 7947-7962.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2017, 879, (12), 324-341.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 3,4-Dimethylthiophene-2,5-dicarboxylic acid Using HRMS and NMR". Environ. Sci. Technol., 2011, 1199, (11), 5818-5840.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2012, 431, (6), 6711-6726.