m-Methyl red/3-((4-(Dimethylamino)phenyl)azo)benzoic acid

English Name: m-methyl red; 3-((4-(Dimethylamino)phenyl)azo)benzoic acid

Other names: p-dimethylaminoazobenzene m-carboxylic acid; 3- ((4- (dimethylamino) phenyl) azo) benzoic acid; P-dimethylaminobenzoazobenzoic acid

CAS No.: 20691-84-3

C15H15N3O2=269.30

Grade: ind

PH discoloration range: 2.0 (red) ～ 4.0 (yellow)

Bromine oxidation test: qualified

Ethanol dissolution test: qualified

Burning residue: ≤ 0.3%

 Physicochemical Properties: reddish brown powder. Soluble in ethanol, almost insoluble in water

Purpose: biochemical research. Acid base indicator

Save: RT, away from light