Bromocresol purple

Supplier: SPECTRUM CHEMICAL MFG CORP

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

BR138-100GM BR138-25GM BR138-500GM BR138-5GM
10860-442EA 721.8 USD
10860-442 10860-444 10860-446 10860-448
Bromocresol purple
Bromocresol purple

Bromocresol Purple is a pH indicator that is typically prepared as a 0.04% solution. It is used to measure albumin in medical laboratories and is added to acid stop baths used in photographic film processing to indicate when the solution is no longer acidic and needs to be replaced

Formula: C₂₁H₁₆Br₂O₅S
MW: 540.23 g/mol
Storage Temperature: Ambient
MDL Number: MFCD00011681
CAS Number: 115-40-2

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Specification Test Results

Absorption Max Approx. 419 NM
Visual Transition Intervals pH 5.2 (Yellow)

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