A. Abd AL-Hayale, M., K. Yousif, N., T. Aziz, A. and H. Sultan, S. 2019. Spectrophotometric Determination of Mesalazine in Pharmaceutical Preparations by Diazotization and Coupling with 2,6- Dihydroxytoluene as a New Coupling Agent. Rafidain Journal of Science. 28, 2 (Jun. 2019), 47–55. DOI:https://doi.org/10.33899/rjs.2019.159966.