Dioctyltin dineodecanoate

Dioctyltin dineodecanoate (CAS 68299-15-0) is an organotin compound commercially available under trade names including UL 38, U 830, TMC 318, TIB KAT 318, and Fomrez UL 38. It carries no assigned E-code and is classified under organometallic compounds with the molecular formula C36H72O4Sn.

In polyurethane foam and elastomer production, it functions as a urethane catalyst by accelerating the tin-mediated reaction between isocyanates and polyols, enabling controlled gel and blow balance. It is also employed in silicone and RTV sealant systems as a condensation catalyst, and in PVC stabilisation where it interrupts oxidative degradation pathways to extend material service life.

Dioctyltin dineodecanoate is subject to REACH registration requirements within the European Economic Area. Suppliers typically offer it in liquid form, packaged in drums or IBCs. Procurement teams should verify current SVHC status and confirm technical-grade specifications with the supplier prior to ordering.