1,4-Dichlorobenzene

1,4-Dichlorobenzene (CAS 106-46-7) is an aromatic organochlorine compound commercially known as PDB, para-dichlorobenzene, Paradi, and Paradow. It is the para isomer of dichlorobenzene and is distinct from its ortho and meta counterparts in both physical form and application profile. No E-code is assigned for food use.

In textile and polymer processing, 1,4-dichlorobenzene functions as a moth-proofing and antimicrobial agent by disrupting insect metabolism through vapor-phase contact. In plastics and flame retardant formulations, it serves as a chlorinated intermediate that contributes halogen content to polymer matrices, reducing ignition propagation. It is also used as a dye carrier in textile dyeing operations.

The material is supplied as crystalline solid conforming to industrial-grade specifications under REACH registration. Procurement quantities are available in fiber drums and bulk packaging. Buyers should verify current REACH authorization status and applicable restrictions under Annex XIV before procurement.