Goyal, Rakesh, Mukesh Sharma, Dharmendra Ahuja, and Anurekha Jain. “Synthesis and Anti-Oxidant Activity of Phenol and Aldehyde Derivatives of Sulfonyl Chloride Quinoxaline”. Journal of Drug Delivery and Therapeutics 9, no. 4-s (August 25, 2019): 1240-1244. Accessed July 2, 2022. http://www.jddtonline.info/index.php/jddt/article/view/3576.