Categories: Stains Indicator Reagents-69
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Product Short Description: BROMOTHYMOL BLUE (ACS GRADE)
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C.A.S. No. 76-59-5
M.F. C27H28Br2O5S
M.W. 624.40gm/mole

Specifications:

Dye Content (by Spectrophotometry) >95%
Transition Range pH 5.8-7.6
  Yellow-Blue
Solubility 0.1% (95% EtOH) Clear solution
Absorption maximum (pH 5.8) ?1max 430-435nm
Absorption maximum (pH 7.6) ?2max 615-618nm
Absorptivity (A1%/1cm at pH 5.8 at ?1max) 260-300
Absorptivity (A1%/1cm at pH 7.6 at ?2max) 470-520
Loss On Drying (110°C) <3%
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