Octamethylcyclotetrasiloxane
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 (6)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Brb North America
Evonik
Huntsman
Shin Etsu Silicones Of America
The Dow Chemical
Show all 6
The Sherwin Williams
Why It Matters
Sectors
WaterConstructionMetals & 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 13 sectors as 10 functional roles.
- •Intermediate in Synthetic Rubber Manufacturing (9%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Paint and Coating Manufacturing (33%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in All Other Chemical Product and Preparation Manufacturing (23%)Processing—incorporation into formulation, mixture, or reaction product
- •Solvents (which become part of product formulation or mixture) in All Other Chemical Product and Preparation Manufacturing (21%)Processing—incorporation into formulation, mixture, or reaction product
- •Adhesives and sealant chemicals in Construction (14%)Processing—incorporation into formulation, mixture, or reaction product
- •Anti-adhesive agents in Wood Product ManufacturingProcessing—incorporation into article
- •Monomers in All Other Chemical Product and Preparation Manufacturing (96%)Processing as a reactant
- •Solvent in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (4%)Processing—incorporation into formulation, mixture, or reaction product
- •Adhesives and sealant chemicals in Adhesive Manufacturing (10%)Processing as a reactant
- •Corrosion inhibitors and anti-scaling agents in Paint and Coating Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Utilities (100%)Processing—incorporation into article
- •Anti-adhesive agents in Plastics Product Manufacturing (45%)Processing—incorporation into formulation, mixture, or reaction product
- •Surface active agents in Plastics Product Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
- •Process regulators in Fabricated Metal Product Manufacturing (5%)Processing—incorporation into formulation, mixture, or reaction product
- •Functional fluids (closed systems) in Rubber Product Manufacturing (33%)Processing as a reactant
- •Intermediate in All Other Basic Inorganic Chemical Manufacturing (80%)Processing as a reactant
- •Solvent in Other (20%)Processing—incorporation into formulation, mixture, or reaction product
- •Solvent in All Other Chemical Product and Preparation Manufacturing (20%)Processing—incorporation into formulation, mixture, or reaction product
Vendor Pricing
$0.01/gAaron Chemicals LLC
CountryHong Kong
Pack$13.00 / 1 kg
Purity98%
Vendors13 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
12 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 | 98% |
| A2B Chem LLC | United States | $0.13 | 100 g | 98% |
| Fluorochem UK | United Kingdom | $0.14 | 1 kg | 98% |
| Fluorochem EU | Germany | $0.14 | 500 g | 98% |
| Ambeed, Inc. | United States | $0.17 | 100 g | 98% |
| Angene International Limited | United States | $0.76 | 500 g | 98% |
| MedChemExpress MCE | Sweden | $1.28 | 100 g | 99.86% |
| AA BLOCKS | United States | $1.36 | 100 g | 98% |
| Sigma-Aldrich (Rush Stock) | Germany | $2.54 | 100 g | 98% |
| Sigma-Aldrich | Germany | $2.54 | 100 g | 98% |
| Labotest KG | Germany | $217.80 | 5000 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
Chemical Identity
CAS556-67-2
PubChem CID11169
DTXSIDDTXSID7027205
FormulaC8H24O4Si4
Mol. Weight296.61 g/mol
SMILESC[Si]1(O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)C
Data Sources
DTXSID70272052026-04-06
https://doi.org/10.23645/epacomptox.5588566
Archive: data/sources/comptox/dsstox_identifiers.csv
111692026-04-06
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/11169/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON
Archive: data/sources/pubchem_properties/11169.json
556-67-22026-04-24
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr.csv
CAS 556-67-22026-04-25
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr_industrial.csv