Hexachlorocyclotriphosphazene

CAS 940-71-6

2λ5,4λ5,6λ5-1,3,5,2,4,6-Triazatriphosphorine, 2,2,4,4,6,6-hexachloro-

Molecular structure of 940-71-6
US productionNot reported
Import value, 2024$154M
Top sourceGermany 55%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 285390 · basket

These shares come from HS customs code 285390, which covers 46 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
DE 55%GermanyCA 21%CanadaJP 6%JapanGB 4%United KingdomKR 3%South Korea

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Vendor Pricing

$0.27/gA2B Chem LLC
CountryUnited States
Pack$133.00 / 500 g
Purity98%
Vendors7 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

Chemical Identity

CAS940-71-6
PubChem CIDNot recorded
DTXSIDDTXSID4061331
FormulaCl6N3P3
Mol. Weight347.64 g/mol
SMILESClP1(Cl)=NP(Cl)(Cl)=NP(Cl)(Cl)=N1

Data Sources

Brief citations

Hexachlorocyclotriphosphazene (CAS 940-71-6) https://chemicalindependence.com/chemical/940-71-6/ EPA TSCA Inventory: CAS 940-71-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 285390 for CAS 940-71-6. Reporting year: 2024. https://usatrade.census.gov/