Product Characteristics Product Detail CAS No 98-44-2 Formula C6H7NO6S2 Molecular Weight 253.25 Synonyms 1- Amino Benzene 2,5 - Disulphonic Acid EINECS 202-669-6 Density 1.844 g/cm3 Melting Point >300 °C Purity (Amine value of free acid) 75% Minimum Insoluble 0.15% Minimum Appearance Moist white powder Packing 25 / 50 Kgs. HDPE bags / jumbo with liner