Other Name: N-Ethyl-OPTSA; NETSA; N-Ethyl-Ortho Para Toluene Sulfonamide CAS No: 8047-99-2 Molecular Formula: C9H13NO2S Product Usage: It's good plasticizers of polyamide resin and cellulose kind of resin, it has high compatibility for hot melt adhesives, coatings, printing ink. Appearance:Straw Yellow Lucency Liquid Purity: 99% min Ash: 0.2% max Wate:r 0.4% max Colority: 130APHA max Free Acid: 0.1% max Viscosity: 25°C� 250m Pa·s min