Dichloroxylenol

Dichloroxylenol (CAS 133-53-9) is a chlorinated phenolic compound also known under trade names including Dixol, Hewsol, Prinsyl, Decasept, and Ottacide. It carries no assigned E-code and is classified within pharmaceutical intermediates. The molecular formula is C8H8Cl2O, with an EC number of 205-109-9.

In personal care and pharmaceutical formulations, dichloroxylenol functions as an antimicrobial agent by disrupting microbial cell membranes, making it applicable in antiseptic preparations and preservative systems. In plastics and polymer processing, it serves as an antioxidant and UV stabilizer, interrupting oxidative chain reactions that degrade polymer matrices during heat exposure or weathering.

Dichloroxylenol is supplied as a light beige powder or crystalline solid and is subject to REACH registration requirements for EU market supply. Procurement should confirm compliance documentation including SDS and CoA aligned with Ph.Eur. or equivalent pharmacopoeial standards where pharmaceutical-grade application is intended. HS code 2908190090 applies for import classification.