2,11-Dioxa-3,10-disiladodecane, 3,3,10,10-tetramethoxy-

CAS 87135-01-1

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

US productionCBI

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

Import volumeZero

Top sourceNo public record

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.

Where It Comes From

EPA reports by year

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

EPA-registered manufacturers (1)

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

Dow Chemical

Why It Matters

Sectors

Core Chemicals

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

•Intermediate in All Other Basic Inorganic Chemical Manufacturing (100%)Processing—repackaging

Vendor Pricing

$2.39/gAaron Chemicals LLC

CountryHong Kong

Pack$239.00 / 100 g

Purity95%

Vendors14 available

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

13 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$2.42	100 g	95%
A2B Chem LLC	United States	$2.80	100 g	95%
AA BLOCKS	United States	$3.52	25 g	95%
Combi-Blocks, Inc.	United States	$3.80	25 g	95%
BLD Pharmatech Co., Limited	United States	$4.44	25 g	95%
BLD Pharmatech Ltd.	China	$4.44	25 g	95%
Ambeed, Inc.	United States	$4.44	25 g	95%
MedChemExpress MCE	Sweden	$5.52	25 g	—
Fluorochem UK	United Kingdom	$6.29	10 g	95%
BLD Pharmatech GmbH	Germany	$6.60	5 g	95%
AstaTech (2 weeks)	United States	$8.00	25 g	95%
Angene International Limited	United States	$16.24	25 g	98%
Angene	China → Hong Kong	$4266.67	30 mg	95%

Chemical Identity

CAS87135-01-1

PubChem CID159046

DTXSIDDTXSID40868964

FormulaC12H30O6Si2

Mol. Weight326.53 g/mol

SMILESCO[Si](CCCCCC[Si](OC)(OC)OC)(OC)OC

Data Sources

EPA CompTox (DSSTox) · DTXSID40868964Retrieved 2026-04-06
PubChem · compound 159046Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04

← Back to Dashboard ← Back to Core Chemicals

Brief citations

2,11-Dioxa-3,10-disiladodecane, 3,3,10,10-tetramethoxy- (CAS 87135-01-1) https://chemicalindependence.com/chemical/87135-01-1/ EPA CompTox (DSSTox): DTXSID40868964. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID40868964 PubChem: 159046. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/159046 EPA Chemical Data Reporting: 87135-01-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 87135-01-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting