Bromocresol purple, AnalaR NORMAPUR® ACS

Supplier: VWR Chemicals

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

VWRC85723.050EA 23.6 SGD
VWRC85723.050 VWRC85723.130
Bromocresol purple, AnalaR NORMAPUR® ACS
Bromocresol purple
Formula: C₂₁H₁₆Br₂O₅S
MW: 540,23 g/mol
MDL Number: MFCD00011681
CAS Number: 115-40-2

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Specification Test Results

Clarity of solution Passes test ACS
Identification (UV/VIS) Passes test
Sensitivity Passes test
Visual transition interval pH 5.2 - pH 6.8
Loss on drying (110°C) Max. 1 %
Absorption max. λ 1 max (buffer pH 5.2) 429 - 433 nm
Absorption max. λ 2 max (buffer pH 6.8) 587 - 590 nm
Sp.absorptivity (λ1max; 0.005g/l; pH5.2; dry) 400 - 470
Sp.absorptivity (λ2max; 0.005g/l; pH6.8; dry) 1000 - 1160

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