Home Categories Send inquiry

Factory directly Phloroglucinol Anhydrous - Phenolphthalein 77-09-8 – Starsky


Product Name: Phenolphthalein
CAS: 77-09-8
MF: C20H14O4
MW: 318.32
EINECS: 201-004-7
Melting point: 261-263 °C (lit.)
Boiling point: 417.49°C (rough estimate)
Density: 1.27 g/cm3 at 32 °C
Refractive index: 1.5400 (estimate)
Fp: 24 °C
PH: 7.8~10.0


Appearance White powder
Assay 99% min
Melting point  261-263 °C (lit.)
Boiling point 417.49°C (rough estimate)


1. Used as an acid-base indicator and irritant laxative for the treatment of constipation
2. Acid-base indicator, non-aqueous titration indicator, chromatographic analysis reagent.