Bromocresol purple 0,04 wt, % in H₂O, Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY

Synonyms: 5',5''-Dibromo-o-cresolsulphonphthalein, 3,3-Bis(3-bromo-4-hydroxy-5-methylphenyl)-3H-benzo[c][1,2]oxathiole 1,1-dioxide

M-Clarity™ quality level = MQ200

318736-100ML 318736-500ML 318736-100ML
318736-100MLEA 40.3 EUR
318736-100ML 318736-500ML NOVS318736-100ML
Bromocresol purple 0,04 wt, % in H₂O, Sigma-Aldrich®
Bromocresol purple

Bromocresol purple (BCP) is an organic dye and a pH indicator. It changes from yellow (pH 5.2) to purple (6.8). BCP reacts with ammonia to yield ammonium salt. Hence, it can be used as an ammonia sensing probe.

Formula: C₂₁H₁₆Br₂O₅S
MW: 540,23 g/mol
Density: 0,991 g/ml (25 °C)
Storage Temperature: RT
MDL Number: MFCD00011681
CAS Number: 115-40-2
EINECS: 204-087-8
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Specification Test Results

Appearance (Form) Liquid
Wavelength 584 - 590 nm
In 0.01 N NaOH
Extinction Coefficient ≥60000
Visual Interval Pass
pH 6.8 = Purple

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