Triphenylphosphine

Triphenylphosphine (CAS 603-35-0) is an organophosphorus compound commercially available under trade names including P 100, PP-360, and JC 263, with the abbreviation TRP also in common use. It carries no assigned E-code. It is classified under HS code 29310095 and belongs to the catalysts and catalyst precursors category.

In pharmaceutical synthesis, triphenylphosphine drives Wittig and Mitsunobu reactions by acting as a nucleophilic phosphorus donor, enabling precise carbon-carbon and carbon-heteroatom bond formation. In polymer and plastics processing, it functions as a stabilizer and catalyst precursor, coordinating with transition metals to form active catalytic complexes that control polymerization selectivity.

Triphenylphosphine is supplied as crystalline powder or flakes and is subject to REACH registration requirements for European procurement. Buyers should confirm supplier compliance documentation and grade specification, as purity requirements differ between pharmaceutical and industrial polymer applications. Standard packaging formats vary by supplier volume tier.