Other Name: Ethyl P-Toluene Sulfonate; P-Toluenesulfonic Acid Ethyl Ester; Ethyl Tosylate CAS No: 80-40-0 Molecular Formula :C9H12O3S Product Usage: It can be used in the manufacture of organic synthesis, and also can be used as intermediate of methylation reagent and sensitive material. It also is flexibilizer of cellulose acetate. Check-Point Unit Specifications Appearance -- Colorless To Light Yellow Liquid Purity % min 98 Melting Point °C min 32 Water % max 0.5 P-Toluenesulfonate % max 0.2 P-Toluenesulfonyl Chloride % max 0.3 Ash % max 0.05