Triphenylphosphine oxide

U.S. production volumes are classified as confidential business information.

US ProductionCBI

Import Value$598M

Top SourceChina 89%

The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.

Where It Comes From

Customs basis: HS 293149 · basket

These shares come from HS customs code 293149, which covers 52 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries

CN 89%ChinaIN 4%IndiaCA 3%CanadaDE 2%GermanyAR 1%Argentina

EPA-registered importers (1)

Arlanxeo

Why It Matters

Sectors

Plastics & Rubber

Downstream UsesNo data available

FDA Shortage Status

No FDA shortage records

Industrial Uses

Used in 1 sector as 1 functional role.

•Catalyst in Synthetic Rubber Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS791-28-6

PubChem CID13097

DTXSIDDTXSID2022121

FormulaC18H15OP

Mol. Weight278.3 g/mol

SMILESC1=CC=C(C=C1)P(=O)(C2=CC=CC=C2)C3=CC=CC=C3

Data Sources

DTXSID20221212026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

130972026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/13097/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/13097.json

791-28-62026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 791-28-62026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv

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