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Alternate Names: Phthalimetten, Euchessina, Phthalin, Espotabs, Phenolax
CAS No: 77-09-8
PubChem CID: 4764
Mol Formula: C20H14O4
Mol Weight: 318.3 g/mol
IUPAC Name: 3,3-bis(4-hydroxyphenyl)-2-benzofuran-1-one
API Description: Phenolphthalein can cause cancer according to The Food and Drug Administration (FDA) and The National Toxicology Program. Phenolphthalein appears as white or yellowish-white to pale orange fine crystalline powder. Odorless. Aqueous solution is acidic. Colorless to pH 8.5; pink to deep-red above pH 9. Colorless in presence of large amounts of alkali. Tasteless.