Phosphorus(III) chloride is the precursor to organ phosphorus compounds, most notably phosphites and phosphonates. It is used during electrode position of metal on rubber and for making surfactants, gasoline additives, dyestuffs, textile finishing agents, medicinal products, and other chemicals.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.