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4-Hydroxy-2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl

CAS 2226-96-2

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

Molecular structure of 2226-96-2
US productionCBI
Import value, 2024$1.3B
Top sourceChina 32%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293339 · basket

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 293339, which covers 397 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 32%ChinaIN 15%IndiaDE 10%GermanyBE 9%BelgiumCH 8%Switzerland
EPA-registered manufacturers (1)
Nalco- An Ecolab
Domestic parents -- activity not disclosed (2)
Solvay
Veolia Water Technologies Treatment Solutions Usa
EPA-registered importers (3)
Basf Se · DE Germany
Aceto Us
Basf

Why It Matters

Sectors
EnergyConstructionMetals & MiningPlastics & RubberPaints & CoatingsCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 8 sectors as 7 functional roles.

  • •Corrosion inhibitor in Miscellaneous Manufacturing (100%)Processing as a reactant
  • •Sealant (barrier) in All Other Chemical Product and Preparation Manufacturing (100%)Use—non-incorporative activities
  • •Sealant (barrier) in Services (100%)Processing as a reactant
  • •Chemical reaction regulator in Plastics Material and Resin ManufacturingProcessing as a reactant
  • •Intermediate in All Other Chemical Product and Preparation Manufacturing (100%)Processing as a reactant
  • •UV stabilizer in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •UV stabilizer in Plastics Product ManufacturingProcessing—incorporation into article
  • •Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant
  • •Intermediate in Paint and Coating Manufacturing (0%)Processing as a reactant
  • •Stabilizing agent in Paint and Coating ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Antioxidant in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •UV stabilizer in Wood Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS2226-96-2
PubChem CID137994
DTXSIDDTXSID4041280
FormulaC9H18NO2
Mol. Weight172.24 g/mol
SMILESCC1(CC(CC(N1[O])(C)C)O)C

Data Sources

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Brief citations

4-Hydroxy-2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl (CAS 2226-96-2) https://chemicalindependence.com/chemical/2226-96-2/ EPA CompTox (DSSTox): DTXSID4041280. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4041280 PubChem: 137994. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/137994 EPA Chemical Data Reporting: 2226-96-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 2226-96-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293339 for CAS 2226-96-2. Reporting year: 2024. https://usatrade.census.gov/