Benzalkonium chloride C16 (BAC C16)

Drug ingredient

CAS 122-18-9

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

Molecular structure of 122-18-9
1 Cl⁻
US productionCBI
Import value, 2024$108M
Top sourceChina 14%

At least one company claimed its 2019 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: 2019. 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
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

Why It Matters

Sectors
Core ChemicalsHealthEnergy
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 2 sectors as 1 functional role.

  • •Corrosion inhibitor in All Other Chemical Product and Preparation ManufacturingProcessing as a reactant
  • •Corrosion inhibitor in Oil and Gas Drilling, Extraction, and Support activitiesUse—non-incorporative activities

Vendor Pricing

$0.15/gAaron Chemicals LLC
CountryHong Kong
Pack$75.00 / 500 g
Purity98%
Vendors16 available

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

Chemical Identity

CAS122-18-9
PubChem CID31202
DTXSIDDTXSID3041665
FormulaC25H46ClN
Mol. Weight396.1 g/mol
SMILESCCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1.[Cl-]

Data Sources

Brief citations

Benzalkonium chloride C16 (BAC C16) (CAS 122-18-9) https://chemicalindependence.com/chemical/122-18-9/ EPA CompTox (DSSTox): DTXSID3041665. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3041665 PubChem: 31202. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/31202 EPA Chemical Data Reporting: 122-18-9. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 122-18-9. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292390 for CAS 122-18-9. Reporting year: 2024. https://usatrade.census.gov/