m-Cresol purple sodium salt is used to detect changes in pH during titrations at which color changes occur at pH 7.6-9.2. Upon bromination, m-cresol purple sodium salt creates the dye bromocresol green (sc-206036) which is used as a tracking dye in DNA agarose gel electrophoresis. In addition, m-cresol purple sodium salt can be used to stain epithelial cells and proteins.
Liu BS.; Zhang HY.; Wang FL. [The reactions between acidic phenolsulfonphthaleins and human serum albumin].Guang Pu Xue Yu Guang Pu Fen Xi.,2003,23(3), 539-542.
Onken H.; Moffett SB.; Moffett DF. Alkalinization in the isolated and perfused anterior midgut of the larval mosquito, Aedes aegypti.J Insect Sci.,2008,81-20.