CAS Registry Number

CAS 4151-51-3 — Tris(4-isocyanatophenyl) thiophosphate

Tris(4-isocyanatophenyl) thiophosphate (CAS 4151-51-3) is a highly reactive isocyanate-based compound primarily used in the synthesis of polyurethane polymers, specialty adhesives, and high-performance coatings. It functions as a trifunctional monomer, enabling cross-linking for enhanced mechanical and thermal properties in end applications. This chemical has a molecular formula of C21H12N3O6PS and a molecular weight of 465.37 g/mol. It must be stored between 2–8°C under inert conditions to prevent degradation. Due to its high reactivity and potential toxicity, it carries a **Danger** signal word under GHS classification, requiring careful handling with appropriate PPE and ventilation. Molekula supplies Tris(4-isocyanatophenyl) thiophosphate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.