Silane, dimethoxy(1-methylethyl)(2-methylpropyl)-

CAS 111439-76-0

EPA’s 2023 records show zero U.S. production of this chemical.

US productionZero

Import value, 2024$537M

Import volumeCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Top sourceChina 39%

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. 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 293190 · basket

EPA reports by year

2023: US production Zero · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 293190, which covers 378 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

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

Ireland
Netherlands
Switzerland
Monaco
Ukraine
Spain
Mexico
Poland
Indonesia
Armenia
Israel
Sweden
Australia
Czech Republic
Hungary
Brunei
Hong Kong
Brazil
Thailand
Argentina
Finland
Austria
Latvia

EPA-registered importers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Lanxess

Why It Matters

Sectors

Plastics & Rubber

Downstream UsesNot recorded

FDA Shortage Status

Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."

No FDA shortage records

Industrial Uses

•Catalyst in Plastics Material and Resin Manufacturing (100%)Processing as a reactant

Vendor Pricing

$20.36/gA2B Chem LLC (2 weeks)

CountryUnited States

Pack$509.00 / 25 g

Purity95%

Vendors5 available

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

4 more vendors

Vendor	Country	$/g	Pack	Purity
Aaron Chemicals LLC	Hong Kong	$491.00	1 g	95%
Angene Chemical	China → Hong Kong	$495.00	1 g	95%
AstaTech (2 weeks)	United States	$538.00	1 g	95%
AA BLOCKS (2 weeks)	United States	$607.00	1 g	95%

Chemical Identity

CAS111439-76-0

PubChem CID86305

DTXSIDDTXSID3073056

FormulaC9H22O2Si

Mol. Weight190.35 g/mol

SMILESCC(C)C[Si](C(C)C)(OC)OC

Data Sources

EPA CompTox (DSSTox) · DTXSID3073056Retrieved 2026-04-06
PubChem · compound 86305Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Silane, dimethoxy(1-methylethyl)(2-methylpropyl)- (CAS 111439-76-0) https://chemicalindependence.com/chemical/111439-76-0/ EPA CompTox (DSSTox): DTXSID3073056. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3073056 PubChem: 86305. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/86305 EPA Chemical Data Reporting: 111439-76-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 111439-76-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293190 for CAS 111439-76-0. Reporting year: 2024. https://usatrade.census.gov/