Ratnamala P. Sonawane and Ritima Singh (2015) “Use of 2-[{4-(1, 3- benzoimidazole-2- yl) phenyl} imino] -5- nitro phenol as an analytical reagent for extractive spectrophotometric determination of Cu (II)”, World Journal of Pharmaceutical Sciences, 3(10), pp. 2119–2124. Available at: https://wjpsonline.com/index.php/wjps/article/view/benzoimidazole-2-yl-phenyl-imino-5-nitro-phenol-analytical- (Accessed: 22 July 2024).