Bromocresol purple, Practical grade, 25 gram

Product Identifier

CAS No. :115-40-2

EC No. : 204-087-8

Molecular Formula: C₂₁H₁₆Br₂O₅S

Molecular Weight : 540.22

Synonym : 5-5'-Dibromo-o-cresolsulphonphthalein

HS Code : 2934 99 00

Storage : Below 30°C

Shelf life : 4 years

Technical Specification

Appearance : Grey to light purple or pink to yellow-tan crystals or powder

Solubility : 20 ppm in 50% ethanol yields clear solution

Visual pH Transition : pH 5.20 (yellow) - pH 6.80 (purple)

Absorption maxima (pH 5.2): 426 - 436 nm (20 ppm in 50% ethanol)

Absorption maxima (pH 6.8) : 584 - 594 nm (20 ppm in 50% ethanol)

Loss on drying (at 110°C, 2 hr) : <= 5.0%

Note :

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CMS

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Bromocresol purple, Practical grade, 25 gram | CMS

Bromocresol purple, Practical grade, 25 gram | CMS

Rp 855.497

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