Feng, Xiao-Jun, and Hua-Ze Dong. “Effect of Time in the Synthesis of an Intermediate of Phenothiazine Derivatives”. Asian Journal of Chemistry 22, no. 9 (July 9, 2010): 6922–6926. Accessed July 4, 2024. https://asianpubs.org/index.php/ajchem/article/view/11930.