Description

Hexaphenoxycyclotriphosphazene (CAS 1184-10-7) is a high-purity, flame-retardant cyclophosphazene derivative with the molecular formula C₃₆H₃₀N₃O₆P₃. This advanced organophosphorus compound features a unique cyclic triphosphazene core functionalized with six phenoxy groups, delivering exceptional thermal stability, chemical resistance, and flame-retardant properties. Ideal for high-performance polymer applications, it acts as a halogen-free flame retardant additive for engineering plastics, elastomers, and coatings. Its robust molecular structure ensures minimal leaching and excellent compatibility with epoxy resins, polycarbonates, and polyurethanes. Supplied as a white crystalline powder with ≥98% purity, it is rigorously tested for consistency, ensuring reliable performance in demanding industrial and research applications. Store in a cool, dry place away from strong oxidizers.

Properties

• CAS Number: 1184-10-7
• Complexity: 911
• IUPAC Name: 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2lambda5,4lambda5,6lambda5-triphosphacyclohexa-1,3,5-triene
• InChI: InChI=1S/C36H30N3O6P3/c1-7-19-31(20-8-1)40-46(41-32-21-9-2-10-22-32)37-47(42-33-23-11-3-12-24-33,43-34-25-13-4-14-26-34)39-48(38-46,44-35-27-15-5-16-28-35)45-36-29-17-6-18-30-36/h1-30H
• InChI Key: RNFJDJUURJAICM-UHFFFAOYSA-N
• Exact Mass: 693.13474668
• Molecular Formula: C36H30N3O6P3
• Molecular Weight: 693.6
• SMILES: C1=CC=C(C=C1)OP2(=NP(=NP(=N2)(OC3=CC=CC=C3)OC4=CC=CC=C4)(OC5=CC=CC=C5)OC6=CC=CC=C6)OC7=CC=CC=C7
• Topological: 92.5
• Monoisotopic Mass: 693.13474668
• Synonyms: Hexaphenoxycyclotriphosphazene, 1184-10-7, DTXSID60152110, 2lambda5,4lambda5,6lambda5-1,3,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexaphenoxy-, 2.lambda.5,4.lambda.5,6.lambda.5-1,3,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexaphenoxy-, DTXCID8074601, 482-200-1, PHENOXYCYCLOPOSPHAZENE, MFCD00183774, 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2lambda5,4lambda5,6lambda5-triphosphacyclohexa-1,3,5-triene, Hexaphenoxycyclotriphosphazatriene, 2,2,4,4,6,6-hexaphenoxy-1,3,5,2lambda~5~,4lambda~5~,6lambda~5~-triazatriphosphinine, Flame Retardant, Phosphaz ene, NSC117810, Hexaphenoxy-1,3,5,2,4,6-triazatriphosphorine, SCHEMBL419465, RNFJDJUURJAICM-UHFFFAOYSA-N, Cyclo-tris(diphenoxyphosphonitrile), Trimeric bis(phenoxy)phosphonitrile, STK344291, AKOS001604435, CS-W011406, FH72446, NSC 117810, NSC-117810, AS-17964, SY055946, DB-061279, H1356, Hexaphenoxy-1,5,2,4,6-triazatriphosphorine, ST50226716, H10907, AG-690/11351928, 2,2,4,4,6,6-hexaphenoxy-1,3,5,2,4,6-triazatriphosphine, 1,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexahydro-2,2,4,4,6,6-hexaphenoxy-

Hexaphenoxycyclotriphosphazene is widely used as a flame retardant in thermosetting resins, wire insulation, and aerospace composites due to its high thermal degradation threshold (>300°C) and low toxicity. It enhances fire resistance in epoxy-based circuit boards and polyurethane foams while maintaining mechanical integrity. Researchers also exploit its phosphazene core for developing novel catalysts or lithium-ion battery electrolytes.

Safety and Hazards

GHS Hazard Statements

• Not Classified
• Reported as not meeting GHS hazard criteria by 3 of 3 companies. For more detailed information, please visit ECHA C&L website.

Hazard Classes and Categories

• Not Classified

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