Preparation and characterization of aspirin and benorilate was written by Wang, Jin;Sun, Wei. And the article was included in Huaxue Yu Nianhe in 2009.SDS of cas: 5003-48-5 The following contents are mentioned in the article:
Aspirin was synthesized with using sodium acetate as the catalyst. The dosage of the catalyst, the reaction time and temperature which had effects on the yield of aspirin was studied. The results showed that sodium acetate had better catalytic activity, when the dosage of sodium acetate, in the system was 3%, reaction temperature was 55 °C, reaction time was 50 min, and the yield of aspirin could reach 81.9%. The synthesis process of benorilate which taken aspirin and acetaminophen as raw materials was improved and the effect of different solvents on the yield of benorilate was investigated. The yield of benorilate was up to 90% in the system of toluene-water medium. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5SDS of cas: 5003-48-5).
4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.SDS of cas: 5003-48-5
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics