Yoke-Leng SimNoridayu OmerM. Niyaz KhanLawrence M. Pratt2024-12-272024-12-272013-0310.1016/j.tet.2013.01.067https://dspace-cris.utar.edu.my/handle/123456789/8726Ultraviolet–visible study on acid–base equilibria of 2-substituted-4(3H)-quinazolinonesjournal-article