Hexamethyldisiloxane
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 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
Country of origin for US imports, from Census customs data (2023).
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 manufacturers (2)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Momentive Performance Materials
The Dow Chemical
EPA-registered importers (8)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Aceto Us
Avantor
Brb North America
Cabot
Evonik
Show all 8
Momentive Performance Materials
Shin Etsu Silicones Of America
The Dow Chemical
Why It Matters
Sectors
ConstructionMetals & MiningPlastics & RubberConsumer ProductsPaints & CoatingsCore Chemicals
Downstream UsesNo data available
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
Used in 12 sectors as 11 functional roles.
- •Adhesives and sealant chemicals in Adhesive Manufacturing (100%)Processing as a reactant
- •Intermediate in Plastics Material and Resin Manufacturing (50%)Processing as a reactant
- •Intermediate in Synthetic Rubber Manufacturing (50%)Processing as a reactant
- •Diluent in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Insulators in Construction (98%)Processing—incorporation into article
- •Anti-adhesive agents in Wood Product ManufacturingProcessing—incorporation into article
- •Paint additives and coating additives not described by other categories in Paint and Coating Manufacturing (100%)Processing as a reactant
- •Intermediate in All Other Basic Organic Chemical Manufacturing (100%)Processing as a reactant
- •Viscosity modifiers in All Other Chemical Product and Preparation Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in All Other Chemical Product and Preparation Manufacturing (22%)Processing—repackaging
- •Surface active agents in Plastics Product Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
- •Adhesives and sealant chemicals in Synthetic Rubber Manufacturing (20%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in All Other Basic Inorganic Chemical Manufacturing (100%)Processing as a reactant
- •Cleaning agent in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (1%)Processing—incorporation into formulation, mixture, or reaction product
- •Terminator/Blocker in Synthetic Rubber ManufacturingProcessing as a reactant
- •Solvent in OtherProcessing—incorporation into formulation, mixture, or reaction product
Vendor Pricing
$0.02/gAaron Chemicals LLC
CountryHong Kong
Pack$9.00 / 500 g
PurityNo data available
Vendors10 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
9 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| Angene Chemical | China → Hong Kong | $0.02 | 500 g | — |
| Fluorochem UK | United Kingdom | $0.11 | 1 kg | 98% |
| Manchester Organics | United Kingdom | $0.20 | 250 g | 99% |
| Combi-Blocks, Inc. | United States | $0.25 | 1 kg | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $0.65 | 100 g | 99.5% |
| Sigma-Aldrich | Germany | $0.65 | 100 g | 99.5% |
| A2B Chem LLC (1 week) | United States | $878.00 | 500 mg | — |
| AA BLOCKS (1 week) | United States | $926.00 | 500 mg | — |
| Angene | China → Hong Kong | $4266.67 | 30 mg | — |
Chemical Identity
CAS107-46-0
PubChem CID24764
DTXSIDDTXSID4026769
FormulaC6H18OSi2
Mol. Weight162.38 g/mol
SMILESC[Si](C)(C)O[Si](C)(C)C
Data Sources
DTXSID40267692026-04-06
https://doi.org/10.23645/epacomptox.5588566
Archive: data/sources/comptox/dsstox_identifiers.csv
247642026-04-06
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/24764/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON
Archive: data/sources/pubchem_properties/24764.json
107-46-02026-04-24
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr.csv
CAS 107-46-02026-04-25
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr_industrial.csv