Products / pH Indicators

BROMOPHENOL RED Print Download

C.A.S. No. 2800-80-8
M.F. C19H12Br2S
M.W. 512.19gm/mole

Specifications:

Dye Content (by Spectrophotometry) >95%
Transition Range pH 4.7-6.3
Yellow-Purple
Solubility 0.1% (95% EtOH) Clear solution
Absorption maximum (pH 4.7) ?1max 435-440nm
Absorption maximum (pH 6.3) ?2max 574-577nm
Absorptivity (A1%/1cm at pH 4.7 at ?1max) 340-370
Absorptivity (A1%/1cm at pH 6.3 at ?2max) 585-720
Loss On Drying (110°C) <5%
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