Tetramethylammonium bromide
CAS 64-20-0
Methanaminium, N,N,N-trimethyl-, bromide (1:1)
This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.
Why supply is unknownProduction is reported production, not a complete census of factories. 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
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.
- Israel
- Indonesia
- Sweden
- Turkey
- United Arab Emirates
- Malaysia
- Singapore
- Lithuania
- Brazil
- Hong Kong
- Australia
- Belgium
- Ukraine
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Chemical Identity
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
Tetramethylammonium bromide (CAS 64-20-0) https://chemicalindependence.com/chemical/64-20-0/ EPA TSCA Inventory: CAS 64-20-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 292390 for CAS 64-20-0. Reporting year: 2024. https://usatrade.census.gov/