Sulphonic tobias acid,2-Naphthylamine-1,5-disulfon

2-Naphthylamine-1,5-disulfonic acid It’s a white prism-like crystal. Show navy blue fluorescence when dissolved in Sodium hydroxide solution, micro-soluble in water, difficult to dissolve in concentrated sulfuric acid. Structural formulaFormula Weight: 303.30Molecular Formula: C10H9NO6S2Usage: It is used for reactive dyes, sensitization materials and intermediates for organic dyestuffsProduct quality standardsProjectIndicatorsDryWetAppearanceWhite Powderwhite or pink-white granularAmido /% ≥80.0062.002-Naphthylamine-1,5-disulfonic acid (HPLC ≥95.00——Isomer(HPLC) ≤5.00——Water insoluble ≤0.100.10Total acidity(H2SO4) ≤15.0013.00 If you have any inquiry please kindly contact us.