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Tetramethylammonium hydroxide

CAS 75-59-2

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

Molecular structure of 75-59-2
1 OH⁻
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 65.0M lb · Imports 3.3M lb

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
EPA-registered manufacturers (2)
Macdermid
Moses Lake Industries

Why It Matters

Sectors
EnergyElectronicsMetals & MiningPlastics & RubberCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 10 sectors as 9 functional roles.

  • •Plating agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Plating agent in Computer and Electronic Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Etching agent in Computer and Electronic Product ManufacturingUse—non-incorporative activities
  • •Plating agent in Electrical Equipment, Appliance, and Component ManufacturingProcessing as a reactant
  • •Chelating agent in Plastics Material and Resin ManufacturingProcessing as a reactant
  • •Laboratory chemicals in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in All Other Basic Organic Chemical ManufacturingProcessing as a reactant
  • •Chain transfer agent in Plastics Material and Resin ManufacturingProcessing as a reactant
  • •Ion exchange agent in All Other Basic Inorganic Chemical ManufacturingProcessing as a reactant
  • •Plating agent in Miscellaneous ManufacturingUse—non-incorporative activities
  • •Processing aids, specific to petroleum production in Oil and Gas Drilling, Extraction, and Support activitiesProcessing—incorporation into formulation, mixture, or reaction product
  • •Chemical reaction regulator in Synthetic Rubber ManufacturingProcessing as a reactant
  • •Plating agent in ServicesProcessing as a reactant

Chemical Identity

CAS75-59-2
PubChem CID60966
DTXSIDDTXSID3029108
FormulaC4H13NO
Mol. Weight91.15 g/mol
SMILESC[N+](C)(C)C.[OH-]

Data Sources

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Brief citations

Tetramethylammonium hydroxide (CAS 75-59-2) https://chemicalindependence.com/chemical/75-59-2/ EPA CompTox (DSSTox): DTXSID3029108. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3029108 PubChem: 60966. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/60966 EPA Chemical Data Reporting: 75-59-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 75-59-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292390 for CAS 75-59-2. Reporting year: 2024. https://usatrade.census.gov/