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Methyl Red pH Indicator

C.I No. 13020 4-Dimethylaminoazobenzene-2'-carboxylic acid, Acid Red 2

Product Size 25gm/100gm/500gm Grade Laboratory Reagent (LR)
Purity CAS No. 493-52-7
Molecular Formula C15H15N3O2 Molecular Weight 269.31
H.S. Code 29270000 Shelf Life 60 months
MSDS Certificate of Analysis (COAs)

Specifications

Appearance Dark red powder
Transition range
pH 4.2 Red
pH 6.2 Yellow
Solubility 0.1% (ethanol) Red solution
Absorptivity 1%, 1 cm, (pH 4.2) at ? max.527.0 nm 1300-1400
Loss on drying at 110°C (1 hr) <3%

Safety Information and Hazard Symbols
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