Description

Hexachlorocyclotriphosphatriazene (CAS 940-71-6) is a highly specialized cyclic phosphazene compound with the molecular formula Cl₆N₃P₃. This inorganic heterocycle features a six-membered ring alternating phosphorus and nitrogen atoms, each phosphorus center bonded to two chlorine atoms. Known for its exceptional thermal stability and reactivity as a precursor, this white crystalline solid is a cornerstone in advanced material science applications. With an IUPAC name of 2,2,4,4,6,6-hexachloro-1,3,5-triaza-2λ⁵,4λ⁵,6λ⁵-triphosphacyclohexa-1,3,5-triene, it serves as a key intermediate for flame retardants, elastomers, and high-performance polymers. Packaged under inert gas to prevent hydrolysis, our ≥98% pure product is ideal for research in inorganic synthesis, coordination chemistry, and polymer crosslinking.

Properties

• CAS Number: 940-71-6
• Complexity: 252
• IUPAC Name: 2,2,4,4,6,6-hexachloro-1,3,5-triaza-2lambda5,4lambda5,6lambda5-triphosphacyclohexa-1,3,5-triene
• InChI: InChI=1S/Cl6N3P3/c1-10(2)7-11(3,4)9-12(5,6)8-10
• InChI Key: UBIJTWDKTYCPMQ-UHFFFAOYSA-N
• Exact Mass: 346.740674
• Molecular Formula: Cl6N3P3
• Molecular Weight: 347.7
• SMILES: N1=P(N=P(N=P1(Cl)Cl)(Cl)Cl)(Cl)Cl
• Topological: 37.1
• Monoisotopic Mass: 344.743624
• Synonyms: Phosphonitrilic chloride trimer, 940-71-6, Hexachlorocyclotriphosphazene, Triphosphonitrilic chloride, Phosphononitrilic chloride trimer, Triphosphonitrile chloride, Hexachlorotriphosphonitrile, Cyclophosphazene dichloride trimer, Hexachlorocyclophosphazatriene, Hexachlorocyclotriphosphazatriene, Cyclophosphonitrilic chloride trimer, Phosphonitrilic chloride cyclic trimer, Phosphonitrile chloride, cyclic trimer, Phosnic 390, Dichlorocyclophosphazine trimer, Hexachlorotriphosphazene, Hexachlorocyclotriphosphatriazene, 2,2,4,4,6,6-Hexachlorocyclotriphosphazatriene, Hexachlorocyclotriphosphazine, NSC 2667, 7VR28MTM9D, Hexachloro-1,3,5,2,4,6-triazatriphosphorine, NSC 209799, 1,3,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexachloro-2,2,4,4,6,6-hexahydro-, NSC-2667, EINECS 213-376-8, NSC-209799, AI3-24917, DICHLOROPHOSPHAZENE TRIMER, DTXSID4061331, 2,2,4,4,6,6-Hexachloro-1,3,5-triaza-2,4,6-triphosphorine, DICHLOROCYCLOTRIPHOSPHAZENE, TRIS(PHOSPHONITRILIC CHLORIDE), TRIS(PHOSPHONITRILIIC CHLORIDE), DICHLOROPHOSPHAZENE CYCLIC TRIMER, 2.lambda.5,4.lambda.5,6.lambda.5-1,3,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexachloro-, 2,2,4,4,6,6-HEXACHLOROCYCLOTRIPHOSPHAZENE, 2,2,4,4,6,6-hexachloro-2,2,4,4,6,6-hexahydro-1,3,5,2,4,6-triazatriphosphorine, 2lambda5,4lambda5,6lambda5-1,3,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexachloro-, DTXCID6048913, Hexachlorophosphazene, 2,2,4,4,6,6-hexachloro-1,3,5-triaza-2lambda5,4lambda5,6lambda5-triphosphacyclohexa-1,3,5-triene, NSC2667, NSC209799, 1,3,5,2,4,6-Triazatriphosphorine,2,2,4,4,6,6-hexachloro-2,2,4,4,6,6-hexahydro-, Hexachloro-1,5,2,4,6-triazatriphosphorine, 2,4,4,6,6-Hexachlorocyclotriphosphazatriene, MFCD00006474, UNII-7VR28MTM9D, 1,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexachloro-2,2,4,4,6,6-hexahydro-, Cyclic Phosphonitrilic Chloride Trimer, Phosphonitrilicchloridetrimer, SCHEMBL459364, N3 P3 Cl6, CHEMBL2022081, Phosphonitrilic chloride trimer, 99%, AKOS000271204, PHOSPHONITRILE CHLORIDE, TRIMER, FP72444, 2,2,4,4,6,6-hexachloro-1,3,5-triaza-2^{5},4^{5},6^{5}-triphosphacyclohexa-1,3,5-triene, CS-0169388, NS00041956, hexachloro-1,3,5,2,4,6-triazatriphosphinine, 1,3,5,2,4,6-Triazatriphosphorine, hexachloro-, EN300-7376711, Q1921671, Phosphonitrilic chloride trimer, 99.95% trace metals basis, hexachloro-1,3,5,2lambda,4lambda,6lambda-triazatriphosphinine, hexachloro-1,3,5,2lambda5,4lambda5,6lambda5-triazatriphosphinine, 2,2,4,4,6,6-Hexachloro-1,3,5,2lambda~5~,4lambda~5~,6lambda~5~-triazatriphosphinine, 2,2,4,4,6,6-Hexachloro-1,3,5,2lambda5,4lambda5-,6lambda5-triazatriphosphinine, 2,2,4,4,6,6-Hexachloro-2I>>5,4I>>5,6I>>5-cyclotriphosphaza-1,3,5-triene

Application

Hexachlorocyclotriphosphatriazene is primarily utilized as a reactive intermediate for synthesizing polyphosphazenes, a class of inorganic-organic hybrid polymers with exceptional thermal and chemical resistance. Researchers employ it to develop flame-retardant additives for textiles, aerospace materials, and electronics due to its phosphorus-rich structure. In coordination chemistry, it acts as a ligand scaffold for transition metal complexes with catalytic applications. The compound’s chlorine substituents enable nucleophilic substitution reactions to create tailored phosphazene derivatives for advanced material engineering.

Safety and Hazards

GHS Hazard Statements

• H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

Precautionary Statements

• P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, and P501

Hazard Classes and Categories

• Skin Corr. 1C (100%)

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