Product Overview
Bromocresol Purple, Water Soluble
Molecular Formula:C21H15Br2NaO5S
CAS Number:62625-30-3
Molecular Weight:562.20
Bromocresol Purple, Water Soluble is a water soluble dye used as an protein probe. It has been used in the spectrophotometric determination of serum-albumin. It is also a pH indicator with a transition interval from 5.2 - 6.8 (yellow to purple).
Synonyms: 5,5-Dibromo-o-cresolsulfonphthalein Sodium Salt
| TEST | SPECIFICATION | RESULTS |
|---|---|---|
| Appearance | Purple-brown to orange crystalline powder | Orange powder |
| Visual Transition Interval | From pH 5.2 (yellow)to pH 6.8 (purple) | Complies |
| Solubility | Clear reddish yellow solution (0.1%, water) | Complies |
| Absorption | pH 5.2 at λmax=430nm: 380-430 (1%, 1cm)pH 6.8 at λmax=589nm: 940-1050 (1%, 1cm) | 414 (1%, 1cm)1032 (1%, 1cm) |
| Loss on Drying | ≤ 5.0% | 1.74% |
Shipping Information
Tariff No. 2934900000
