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Bromocresol Purple pH Indicator

5,5' Dibromo-o-cresolsulphonphthalein

Product Size 25gm/100gm/500gm Grade Laboratory Reagent (LR)
Purity CAS No. 115-40-2
Molecular Formula C21H16Br2O5S Molecular Weight 540.24
H.S. Code 29349990 Shelf Life 60 months
MSDS Certificate of Analysis (COAs)

Specifications

Transition range pH 5.2-6.8 Greenish yellow-bluish violet
Solubility 0.1% ethanol Clear golden yellow solution
Absorptivity 1%,1cm,(pH 5.2) at ? max.431.0 nm 400-450
Absorptivity 1%,1cm,(pH 6.8) at ? max.589.0 nm 1000-1100
Loss on drying at 110°C (1hr) <1%

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