Category:
Other Specialized Reagents
CAS NO:
77-09-8
Standard:
USP,BP,EP,In-house Standards,
Yellow Phenolphthalein is a specialized derivative of phenolphthalein, synthesized via modified sulfonation or oxidation processes to alter its chromatic properties. Unlike the standard indicator, this variant exhibits distinct solubility and color transition characteristics in alkaline media. Its molecular formula is C20H14O4, with CAS No. 77-09-8.