Calmagite/1-(1-Hydroxy-4-methyl-2-phenylazo)-2-naphthol-4-sulfonic acid

English Name: calmagite; 1-(1-Hydroxy-4-methyl-2-phenylazo)-2-naphthol-4-sulfonic acid； 3-Hydroxy-4-(2-hydroxy-5-methylphenylazo)naphthalene-1-sulfonic acid

Other names: 3-hydroxy-4 - [(2-hydroxy-5-methylphenyl) azo] - 1-naphthalenesulfonic acid; 1- (1-hydroxy-4-methyl-2-phenylazo) - 2-naphthol-4-sulfonic acid; Calcium magnesium indicator

CAS No.: 3147-14-6

C17H14N2O5S=358.37

Grade: ind

Melting point: ≥ 330 ℃

UV absorption： λ max 602nm

  Physicochemical Properties: dark brown or black crystalline powder, insoluble in water

Purpose: biochemical research. As an indicator when titrating Ca and Mg metal ions with EDTA

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