Phosphinic acid

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

Molecular structure of 6303-21-5
US ProductionCBI
Import Value$66M
Top SourceChina 46%

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 281119 · basket

These shares come from HS customs code 281119, which covers 19 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries
CN 46%ChinaDE 17%GermanyMY 12%MalaysiaKR 5%South KoreaTW 5%Taiwan
EPA-registered importers (3)
Honeywell International
Special Materials
Univar Solutions

Why It Matters

Sectors
Metals & MiningPlastics & RubberCore Chemicals
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 1 sector as 1 functional role.

  • Oxidizing/reducing agents in All Other Basic Inorganic Chemical Manufacturing (60%)Not Known or Reasonably Ascertainable

Chemical Identity

CAS6303-21-5
PubChem CID4124402
DTXSIDDTXSID90873902
FormulaH3O2P
Mol. Weight65.996 g/mol
SMILESO[PH2]=O

Data Sources

DTXSID908739022026-04-06

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

Archive: data/sources/comptox/dsstox_identifiers.csv

41244022026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/4124402/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/4124402.json

6303-21-52026-04-24

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

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

CAS 6303-21-52026-04-25

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

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