O-Acetylsalicylic Acid 99%

p-Toluenesulfonyl chloride may be used in the following processes In combination with N-methylimidazole for the esterification or thioesterification of carboxylic acids and alcohols or thiols. As an additive to enhance the yield of symmetrical biaryls via palladium chloride catalyzed homo-coupling of arylboronic acids in the absence of ligands. As a positive chlorine source for the -chlorination of ketones. Solvent-free tosylation of alcohols and phenols in the presence of heterodoxy acids. As an activator for reaction between 2-alkynylbenzaldoxime and phenols to form 1-aroxyisoquinolines in the presence of silver triflate.

For R&D use onlynot for drug household or other uses.

p-Toluenesulfonyl chloride is an organic sulfonyl chloride mainly used to convert hydroxyl groups into good leaving group by forming sulfonates.