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Alkyl carboxymethyl dimethyl ammonium compound C16 (AcMDMAC C16)

CAS 693-33-4

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

Molecular structure of 693-33-4
US productionCBI
Import value, 2024$108M
Top sourceChina 14%

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 292390 · basket

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

These shares come from HS customs code 292390, which covers 130 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 14%ChinaGB 13%United KingdomDE 11%GermanyIN 10%IndiaTW 10%Taiwan
Domestic parents -- activity not disclosed (1)
Stepan
EPA-registered importers (2)
Syensqo Sa · BE Belgium
Solvay

Why It Matters

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

Industrial Uses

Used in 3 sectors as 3 functional roles.

  • •Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing—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
  • •Thickening agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$1.56/gAaron Chemicals LLC (2 weeks)
CountryHong Kong
Pack$39.00 / 25 g
Purity30%
Vendors3 available

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

2 more vendors
VendorCountry$/gPackPurity
A2B Chem LLC (2 weeks)United States$2.0025 g30%
AA BLOCKS (2 weeks)United States$2.2425 g30%

Chemical Identity

CAS693-33-4
PubChem CID93554
DTXSIDDTXSID8027298
FormulaC20H41NO2
Mol. Weight327.5 g/mol
SMILESCCCCCCCCCCCCCCCC[N+](C)(C)CC(=O)[O-]

Data Sources

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Brief citations

Alkyl carboxymethyl dimethyl ammonium compound C16 (AcMDMAC C16) (CAS 693-33-4) https://chemicalindependence.com/chemical/693-33-4/ EPA CompTox (DSSTox): DTXSID8027298. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8027298 PubChem: 93554. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/93554 EPA Chemical Data Reporting: 693-33-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 693-33-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292390 for CAS 693-33-4. Reporting year: 2024. https://usatrade.census.gov/