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Hexadecyl(dimethyl)amine oxide

CAS 7128-91-8

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

Molecular structure of 7128-91-8
US productionCBI
Import value, 2024$133M
Top sourceChina 47%

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 292990 · basket

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

These shares come from HS customs code 292990, which covers 38 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 47%ChinaDE 20%GermanyIN 14%IndiaGB 4%United KingdomKR 4%South Korea
EPA-registered manufacturers (2)
Arxada
Verdant Specialty Solutions
Domestic parents -- activity not disclosed (1)
Stepan

Why It Matters

Sectors
AgricultureConsumer ProductsCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 5 sectors as 2 functional roles.

  • •Surfactant (surface active agent) in Not Known or Reasonably Ascertainable (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Surfactant (surface active agent) in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Emulsifier in Pesticide, Fertilizer, and Other Agricultural Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Surfactant (surface active agent) in Wholesale and Retail TradeProcessing—incorporation into formulation, mixture, or reaction product
  • •Surfactant (surface active agent) in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$489.00/gA2B Chem LLC (2 weeks)
CountryUnited States
Pack$489.00 / 1 g
PurityNot recorded
Vendors3 available

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

2 more vendors
VendorCountry$/gPackPurity
AA BLOCKS (2 weeks)United States$529.001 g—
Aaron Chemicals LLCHong Kong$557.001 g—

Chemical Identity

CAS7128-91-8
PubChem CID3032528
DTXSIDDTXSID2051471
FormulaC18H39NO
Mol. Weight285.5 g/mol
SMILESCCCCCCCCCCCCCCCC[N+](C)(C)[O-]

Data Sources

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Brief citations

Hexadecyl(dimethyl)amine oxide (CAS 7128-91-8) https://chemicalindependence.com/chemical/7128-91-8/ EPA CompTox (DSSTox): DTXSID2051471. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2051471 PubChem: 3032528. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/3032528 EPA Chemical Data Reporting: 7128-91-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 7128-91-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292990 for CAS 7128-91-8. Reporting year: 2024. https://usatrade.census.gov/