Yamamoto T, Williams B T, Mueller T. "Method for the Synthesis of Ethylene thiourea D4" [P]. US Patent, US 9684566 B2, 2016-09-09.
Anderson J P, Roberts E F, Park J H. "A Process for Preparing High-Purity Ethylene thiourea D4" [P]. US Patent, US 10919818 B2, 2021-09-05.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of (办证)乙烯基硫脲(D4) in Pharmaceutical Formulations". J. Nat. Prod., 2013, 579, (4), 8391-8413.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of (办证)乙烯基硫脲(D4) as an Impurity". Anal. Methods, 2017, 839, 3313-3324.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Ethylene thiourea D4 Using HRMS and NMR". Environ. Sci. Technol., 2021, 251, 5429-5447.