Ma, Wei-Xing, Ying-Hong Liu, and Ou Sha. “Spectrophotometric Determination of Centrophenoxine Hydrochloride With Alkalinity Potassium Permanganate Method”. Asian Journal of Chemistry 23, no. 8 (May 6, 2011): 3481–3484. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/10653.