Molecular formula: C13H20N2O2S Molecular weight: 268.37 CAS: 70693-59-3 EINECS: 274-775-0 Assay: e98.5% ( LC) Appea rance: grey white crystal Melting point: 96 -101 Moisture: 1% Packing: 25kg per drum Uses: dye intermediate to produce acid dye