P-toluene sulfonamide(excellent) CAS NO.: 70-55-3 Molecular formula: C7H9NO2S Appearance: white crystal Content: 99% Min Melting point: 136'C Min Moisture: <=0.3% Max Ortho: 0.2 Max Ash: 0.1Max Color: 20APHA Max Chloride: 100ppm Max Sulfuric acid: 100ppm Max Iron: 10ppm Max Heavy Metal: 10ppm Max Packing: 25Kg weave pocket lining plastics film Usefulness: medicine plasticizer, dyestuff midbody, flurescent resin.