Tetramethylsilane

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

US ProductionCBI

Import Value$537M

Top SourceChina 39%

The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.

Where It Comes From

Customs basis: HS 293190 · basket

These shares come from HS customs code 293190, which covers 164 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries

CN 39%ChinaDE 17%GermanyIT 9%ItalyIN 7%IndiaJP 7%Japan

EPA-registered manufacturers (3)

Gelest Holdings

Momentive Performance Materials

The Dow Chemical

EPA-registered importers (1)

The Dow Chemical

Why It Matters

Sectors

ElectronicsCore Chemicals

Downstream UsesNo data available

FDA Shortage Status

No FDA shortage records

Industrial Uses

Used in 3 sectors as 3 functional roles.

•Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
•Semiconductor and photovoltaic agent in Electrical Equipment, Appliance, and Component Manufacturing (100%)Processing as a reactant
•Plating agent in All Other Basic Inorganic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$1.44/gSigma-Aldrich (Rush Stock)

CountryGermany

Pack$144.45 / 100 g

Purity99.9%

Vendors5 available

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

4 more vendors

Vendor	Country	$/g	Pack	Purity
Sigma-Aldrich	Germany	$1.44	100 g	99.9%
Fluorochem UK	United Kingdom	$1.93	100 g	99%
A2B Chem LLC	United States	$3.63	100 g	99.9%
AA BLOCKS	United States	$4.06	100 g	99.9%

Chemical Identity

CAS75-76-3

PubChem CID6396

DTXSIDDTXSID9026423

FormulaC4H12Si

Mol. Weight88.22 g/mol

SMILESC[Si](C)(C)C

Data Sources

DTXSID90264232026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

63962026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/6396/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/6396.json

75-76-32026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 75-76-32026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv

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