Phosphorous acid, trioctadecyl ester

CAS 2082-80-6

Molecular structure of 2082-80-6
US productionNot reported
Import value, 2024$23M
Top sourceSingapore 52%

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 292029 · basket

These shares come from HS customs code 292029, which covers 28 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
SG 52%SingaporeTW 12%TaiwanIT 9%ItalyGB 7%United KingdomES 7%Spain

Why It Matters

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

Vendor Pricing

$2.16/gA2B Chem LLC
CountryUnited States
Pack$54.00 / 25 g
Purity88%
Vendors5 available

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

Chemical Identity

CAS2082-80-6
PubChem CIDNot recorded
DTXSIDDTXSID20883791
FormulaC54H111O3P
Mol. Weight839.453 g/mol
SMILESCCCCCCCCCCCCCCCCCCOP(OCCCCCCCCCCCCCCCCCC)OCCCCCCCCCCCCCCCCCC

Data Sources

Brief citations

Phosphorous acid, trioctadecyl ester (CAS 2082-80-6) https://chemicalindependence.com/chemical/2082-80-6/ EPA TSCA Inventory: CAS 2082-80-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 292029 for CAS 2082-80-6. Reporting year: 2024. https://usatrade.census.gov/