Product : Bromophenol Blue C.A.S. No. :115-39-9 M.F. :C19H10Br4O5S M.W. :669.99gm/mole Specifications: Dye Content (by Spectrophotometry) >95% Transition Range pH 3.0-4.6 Greenish Yellow-Blue Solubility 0.1% (95% EtOH) Clear solution Absorption maximum (pH 3.0) ?1max 434-439nm Absorption maximum (pH 4.6) ?2max 590-593nm Absorptivity (A1%/1cm at pH 3.0 at ?1max) 350-385 Absorptivity (A1%/1cm at pH 4.6 at ?2max) 940-1000 Loss On Drying (110�°C)
