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Tetraethylammonium hydroxide

CAS 77-98-5

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

Molecular structure of 77-98-5
1 OH⁻
US productionCBI
Import value, 2024$108M
Import volumeZero
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 Zero
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
ElectronicsConsumer ProductsCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 6 sectors as 5 functional roles.

  • •Plating agent in Wholesale and Retail TradeUse—non-incorporative activities
  • •Ion exchange agent in All Other Basic Inorganic Chemical ManufacturingProcessing as a reactant
  • •Plating agent in Computer and Electronic Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Chain transfer agent in Photographic Film, Paper, Plate, and Chemical ManufacturingProcessing as a reactant
  • •Laboratory chemicals in All Other Chemical Product and Preparation ManufacturingProcessing—repackaging
  • •Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant

Chemical Identity

CAS77-98-5
PubChem CID6509
DTXSIDDTXSID30883222
FormulaC8H21NO
Mol. Weight147.26 g/mol
SMILESCC[N+](CC)(CC)CC.[OH-]

Data Sources

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Brief citations

Tetraethylammonium hydroxide (CAS 77-98-5) https://chemicalindependence.com/chemical/77-98-5/ EPA CompTox (DSSTox): DTXSID30883222. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID30883222 PubChem: 6509. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6509 EPA Chemical Data Reporting: 77-98-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 77-98-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292390 for CAS 77-98-5. Reporting year: 2024. https://usatrade.census.gov/