Cyclopentane, 1,1'-(dimethoxysilylene)bis-

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

Molecular structure of 126990-35-0
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 importers (1)
Evonik

Why It Matters

Sectors
Plastics & Rubber
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 1 sector as 1 functional role.

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

Vendor Pricing

$0.38/gAaron Chemicals LLC
CountryHong Kong
Pack$189.00 / 500 g
Purity98%
Vendors13 available

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

12 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina Hong Kong$0.43500 g96%
A2B Chem LLCUnited States$0.4825 g96%
Combi-Blocks, Inc.United States$0.55100 g95%
AA BLOCKSUnited States$0.5625 g96%
Ambeed, Inc.United States$0.63100 g98%
Fluorochem EUGermany$0.76100 g96%
SynthonixUnited States$1.5010 g98%
AK Scientific SpecializedUnited States$2.59100 g95%
AK Scientific, Inc.United States$3.62100 g98%
AstaTech (2 weeks)United States$7.2825 g95%
Key Organics Ltd.United Kingdom$2080.0050 mg98%
AngeneChina Hong Kong$4266.6730 mg96%

Chemical Identity

CAS126990-35-0
PubChem CID9794573
DTXSIDDTXSID80888929
FormulaC12H24O2Si
Mol. Weight228.4 g/mol
SMILESCO[Si](C1CCCC1)(C2CCCC2)OC

Data Sources

DTXSID808889292026-04-06

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

Archive: data/sources/comptox/dsstox_identifiers.csv

97945732026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/9794573/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/9794573.json

126990-35-02026-04-24

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

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

CAS 126990-35-02026-04-25

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

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