Methyl red sodium / methyl red sodium salt / water-soluble methyl red

English name：Methyl red sodium salt；p-Dimethylaminoazobenzene-o-carboxylic acid sodium salt；C.I. 13020；2-[4-(Dimethylamino)phenylazo]benzoic acid sodium salt

Other names: methyl red sodium salt; 2 - [4 - (dimethylamino) phenylazo] benzoic acid sodium salt; Water soluble methyl red; P-dimethylaminoazobenzene sodium o-carboxylate; 4-dimethylaminoazobenzene-2 '- carboxylic acid sodium salt

CAS No.: 845-10-3

C15H14N3NaO2=291.28

Grade: high purity grade

PH discoloration range: 4.5 (red) ～ 6.2 (yellow)

Ethanol dissolution test: acceptable

Physicochemical properties: orange red crystal powder. Soluble in water and ethanol. Maximum absorption wavelength: 437nm

Purpose: biochemical research. Acid base indicator, pH discoloration range 4.4 (red) ～ 6.2 (yellow). Redox indicator. Used for cerium sulfate titration of ferrous ions

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