2,2,4-Trimethyl-1,3-pentanediol diisobutyrate

2,2,4-Trimethyl-1,3-pentanediol diisobutyrate (CAS 6846-50-0) is a synthetic diester plasticizer and solvent commonly identified by the abbreviations TXIB and TPIB, and sold under trade names including Kodaflex TXIB, PROSOLVE DE, Kyowanol M, and CS 16. It carries no assigned E-code and is classified under HS code 29156019.

In PVC and polymer formulations, TXIB functions as a secondary plasticizer, reducing viscosity in plastisols and improving flow during processing without migrating readily from the finished compound. In personal care and fragrance applications, it serves as a fixative and solvent carrier, slowing the evaporation rate of volatile fragrance components to extend scent longevity on skin or substrate.

TXIB is supplied as a technical-grade liquid and falls under REACH registration requirements for EU market supply. Procurement quantities typically range from drum to IBC formats. Buyers should confirm supplier documentation for REACH compliance, SDS availability, and purity specifications before placing orders.