Phenylphosphinic acid

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

Molecular structure of 1779-48-2
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 (2)
Kordsa
Special Materials

Why It Matters

Sectors
Plastics & Rubber
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 3 sectors as 3 functional roles.

  • Intermediate in Plastics Material and Resin Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
  • Intermediate in Organic Fiber Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
  • Reducing agent in Not Known or Reasonably Ascertainable (0%)Processing as a reactant
  • UV stabilizer in Organic Fiber ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS1779-48-2
PubChem CID72903
DTXSIDDTXSID0027436
FormulaC6H7O2P
Mol. Weight142.09 g/mol
SMILESC1=CC=C(C=C1)P(O)O

Data Sources

DTXSID00274362026-04-06

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

Archive: data/sources/comptox/dsstox_identifiers.csv

729032026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/72903/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/72903.json

1779-48-22026-04-24

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

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

CAS 1779-48-22026-04-25

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

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