Tetrakis(hydroxymethyl)phosphonium chloride

• CAT Number: M070576
• CAS Number: 124-64-1
• Molecular Formula: C4H12ClO4P
• Molecular Weight: 190.56
• Purity: ≥95%
• Storage: -20°C
• IUPAC Name: tetrakis(hydroxymethyl)phosphanium;chloride
• InChI: InChI=1S/C4H12O4P.ClH/c5-1-9(2-6,3-7)4-8;/h5-8H,1-4H2;1H/q+1;/p-1
• InChIKey: AKXUUJCMWZFYMV-UHFFFAOYSA-M
• SMILES: C(O)[P+](CO)(CO)CO.[Cl-]

Tetrakis(hydroxymethyl)phosphonium chloride (Cat No.: M070576) is a water-soluble, organophosphorus compound consisting of a central phosphorus atom bonded to four hydroxymethyl groups and a chloride counterion. It is widely used as a flame retardant in textile finishing, paper treatment, and wood preservation. THPC also serves as a reagent in the synthesis of phosphine-based ligands and polymers. Its reactivity with amines and ability to crosslink cellulose fibers make it essential in durable press fabric treatments. THPC is typically handled in aqueous solutions due to its hygroscopic nature.