Chen K W, Fischer A B, Schröder R. "Method for the Synthesis of 4,4'-Azanediyldibenzonitrile" [P]. US Patent, US 11061777 B2, 2017-04-26.
Kowalski A, Jørgensen K, Mueller T C. "A Process for Preparing High-Purity 4,4'-Azanediyldibenzonitrile" [P]. European Patent, EP 3263996 A1, 2018-12-09.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2012, 213, 2977-2999.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2013, 549, (6), 6542-6555.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 4,4'-Azanediyldibenzonitrile Using HRMS and NMR". Talanta, 2012, 309, 4406-4432.