Shekhovtsov, Sergey V., Nikolay O. Mchedlov-Petrossyan, Nika N. Kamneva, and Taras Yu. Gromovoy. “New Orange Dyes: Nitroderivatives of Sulfonefluorescein”. Kharkiv University Bulletin. Chemical Series0, no. 24 (October 24, 2014): 7-18. Accessed May 6, 2024. https://periodicals.karazin.ua/chemistry/article/view/14269.