A chemical compound that is used as an indicator in acid-base titrations. It turns colorless in acidic solutions and pink in basic solutions. Reference standards of Phenolphthalein API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
Phenolphthalein
Catalogue No.:PA 43 04000
CAS :
Molecular Formula : C20H14O4
Molecular Weight : 318.32
Phenolphthalein (1524908)
Catalogue No.:PA USP1524908
Molecular Formula : NA
Molecular Weight : NA
Phenolphthalein Diphosphate Tetrasodium Salt
Catalogue No.:PA 43 04510
Molecular Formula : C20H12Na4O10P2
Molecular Weight : 566.21
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