Dodecamethylcyclohexasiloxane
CAS 540-97-6
U.S. production volumes are classified as confidential business information.
At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.
Why supply is unknownProduction is reported production, not a complete census of factories. US production volume is confidential. 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
- 2023
- US production Confidential · 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.
- 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
Why It Matters
Industrial Uses
Used in 5 sectors as 5 functional roles.
- •Intermediate in Paint and Coating Manufacturing (100%)Processing as a reactant
- •Monomers in All Other Chemical Product and Preparation ManufacturingProcessing as a reactant
- •Solvent in Other (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Solvent in All Other Chemical Product and Preparation Manufacturing (3%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in All Other Basic Inorganic Chemical Manufacturing (3%)Processing as a reactant
- •Diluent in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Viscosity modifiers in All Other Chemical Product and Preparation Manufacturing (90%)Processing—incorporation into formulation, mixture, or reaction product
- •Monomers in Plastics Product Manufacturing (100%)Processing as a reactant
Vendor Pricing
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
8 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 |
|---|---|---|---|---|
| AA BLOCKS | United States | $3.65 | 100 g | 95% |
| Angene International Limited | United States | $6.16 | 100 g | 95% |
| Fluorochem UK | United Kingdom | $14.30 | 25 g | 95% |
| AstaTech (2 weeks) | United States | $42.00 | 1 g | 97% |
| Aaron Chemicals LLC | Hong Kong | $72.00 | 1 g | 98% |
| Angene Chemical | China → Hong Kong | $79.00 | 1 g | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $257.92 | 250 mg | 95% |
| Sigma-Aldrich | Germany | $257.92 | 250 mg | 95% |
Chemical Identity
Data Sources
- EPA CompTox (DSSTox) · DTXSID6027183Retrieved 2026-04-06
- PubChem · compound 10911Retrieved 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
Brief citations
Dodecamethylcyclohexasiloxane (CAS 540-97-6) https://chemicalindependence.com/chemical/540-97-6/ EPA CompTox (DSSTox): DTXSID6027183. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6027183 PubChem: 10911. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/10911 EPA Chemical Data Reporting: 540-97-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 540-97-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293190 for CAS 540-97-6. Reporting year: 2024. https://usatrade.census.gov/