Sodium p-toluenesulfonate

Sodium p-toluenesulfonate (CAS 12068-03-0) is an aromatic sulfonate salt supplied under trade names including NAXONATE ST and NAXONATE 4ST, and also referenced as sodium toluenesulphonate or tosic acid sodium salt. It carries no assigned E-code and is registered under EC 235-088-1.

In personal care formulations, it functions as a hydrotrope, reducing the viscosity of surfactant systems and improving the solubility of poorly water-soluble actives by disrupting structured micellar aggregates. In agrochemical concentrates, it acts as a wetting and dispersing agent, lowering interfacial tension to improve active ingredient distribution across leaf surfaces.

Sodium p-toluenesulfonate is available in solid form and supplied in compliance with REACH registration requirements applicable to the European market. Procurement teams should confirm grade specifications against pharmaceutical or industrial standards depending on end-use requirements. Contact our technical team for current packaging formats and documentation.