ORTHO CRESOLPHTHALEIN

CAS NO. 596- 27- 0

Molecular Formula C22H18O4

Molecular Weight 346.38

Appearance White Powder

Solubility 0.1% (Ethanol) Clear Solution

Transition range pH 8.2-9.8 (Colourless – Violet Red)

Absorptivity 1%,1cm (in 0.1N NaOH) at λ max.568.0nm >1800

Loss on drying at 110°C (1hr) 0.51%

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