Didecyldimethylammonium chloride

Drug ingredient

CAS 7173-51-5

This drug ingredient has classified U.S. production volumes. EPA withholds the number as confidential business information.

Molecular structure of 7173-51-5 — 1 Cl⁻

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

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

Country of origin for US imports, from Census customs data (2024).

CN 14%ChinaGB 13%United KingdomDE 11%GermanyIN 10%IndiaTW 10%Taiwan

Israel
Indonesia
Sweden
Turkey
United Arab Emirates
Malaysia
Singapore
Lithuania
Brazil
Hong Kong
Australia
Belgium
Ukraine

EPA-registered manufacturers (3)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Ces Energy Solutions · CA Canada

Aes Holdings

Arxada

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Stepan

EPA-registered importers (2)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Calfrac Well Services

Pilot Chemical Holdings

Why It Matters

Sectors

HealthEnergyCore Chemicals

Downstream Uses

Appears in 4 drug and cosmetic product listings (FDA).

•Wet wipes
•Lepnuns Milia Remover
•Meoly Milia Remover 30 ml
•Milia Remover Treatment

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

Used in 3 sectors as 4 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 ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Emulsifier in All Other Basic Organic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Cleaning agent in All Other Basic Organic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Cleaning agent in Oil and Gas Drilling, Extraction, and Support activities (100%)Processing—incorporation into formulation, mixture, or reaction product
•Processing aids, specific to petroleum production in Oil and Gas Drilling, Extraction, and Support activities (3%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.09/gAaron Chemicals LLC

CountryHong Kong

Pack$43.00 / 500 g

Purity80%

Vendors14 available

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

13 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.09	500 g	80%
A2B Chem LLC	United States	$0.15	500 g	95%
AA BLOCKS	United States	$0.19	500 g	95%
AK Scientific, Inc.	United States	$0.21	1 kg	80%
Combi-Blocks, Inc.	United States	$0.25	1 kg	95%
Synthonix	United States	$0.50	100 g	95%
Angene International Limited	United States	$0.52	100 g	80%
AstaTech, Inc	United States	$0.68	100 g	95%
MedChemExpress MCE	Sweden	$35.09	5 g	98%
TargetMol Chemicals	China → United States	$46.00	1 g	99.81%
Sigma-Aldrich (Rush Stock)	Germany	$481.48	250 mg	—
Sigma-Aldrich	Germany	$481.48	250 mg	—
Angene	China → Hong Kong	$4266.67	30 mg	80%

Chemical Identity

CAS7173-51-5

PubChem CID23558

DTXSIDDTXSID9032537

FormulaC22H48ClN

Mol. Weight362.1 g/mol

SMILESCCCCCCCCCC[N+](C)(C)CCCCCCCCCC.[Cl-]

Data Sources

EPA CompTox (DSSTox) · DTXSID9032537Retrieved 2026-04-06
PubChem · compound 23558Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Didecyldimethylammonium chloride (CAS 7173-51-5) https://chemicalindependence.com/chemical/7173-51-5/ EPA CompTox (DSSTox): DTXSID9032537. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9032537 PubChem: 23558. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/23558 EPA Chemical Data Reporting: 7173-51-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 7173-51-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292390 for CAS 7173-51-5. Reporting year: 2024. https://usatrade.census.gov/