发明人王建平,刘建华,林芳. "Method for the Synthesis of 8-Oxo-8H-indeno[2,1-b]thiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109099456 B, 授权公告日 2020-09-14.
Anderson J P, Lee S K, Stevens L M. "A Process for Preparing High-Purity 8-Oxo-8H-indeno[2,1-b]thiophene-2-carboxylic acid" [P]. US Patent, US 9018297 B2, 2019-08-02.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2012, 2291, (8), 9772-9777.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2025, 447, (4), 8413-8422.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 8-Oxo-8H-indeno[2,1-b]thiophene-2-carboxylic acid Using HRMS and NMR". Anal. Chim. Acta, 2025, 1362, (10), 8730-8749.