Cresolphthalein complexon, Synonyms- Phthalein Purple; Metalphthalein; Xylenylphthalein-bisiminodiacetic acid, C.I. NO. 42535, CAS No. 2411-89-4, MSDS, Stains and Indicators Manufacturer, Exporter, Supplier, Mumbai, India| Unisource Chemicals Pvt. Ltd.

Specification

Product Name

O-CRESOLPHTHALEIN COMPLEXON

Synonyms

Phthalein Purple; Metalphthalein;
Xylenylphthalein-bisiminodiacetic acid

C.I. NO.

42535

CAS NO.

2411-89-4

Molecular Formula

C₃₂H₃₂N₂O₁₂

Formula Weight

636.60

Appearance

White to light pink to tan crystalline powder

Structure

Tests

Limits

Solubility in 0.1N NaOH

- Clear Purple Solution

Absorptivity 1%/1cm (in 0.1N NaOH)
at λ max.573. nm

- 842

Loss on drying (110°C)

- 4.52%

REVISED: 1-1-2012