Product : o - Cresolphthalein
C.A.S. No. :596-27-0
M.F. :C22H18O4
M.W. :346.38gm/mole

Specifications:

Dye Content (by Spectrophotometry) = >95%
Appearance = White-Off white powder
Solubility 0.1% (EtOH) = Clear solution
Transition Range = pH 8.2-9.8
Colorless-Red
Absorption maximum (0.1N NaOH) at ?max = 564-568nm
Absorptivity (A1%1cm in 0.1N NaOH at ?max) = >1670
Loss On Drying (110�°C) = <1%

Product Description:
Cresolphthalein is a pH indicator used in titrations. It is insoluble in water but soluble in ethanol.