Hexamethylcyclotrisiloxane

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

Molecular structure of 541-05-9
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 manufacturers (2)
Avantor
Momentive Performance Materials
EPA-registered importers (1)
Shin Etsu Silicones Of America

Why It Matters

Sectors
EnergyElectronicsConstructionPlastics & RubberCore Chemicals
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 7 sectors as 5 functional roles.

  • Intermediate in Plastics Material and Resin Manufacturing (50%)Processing as a reactant
  • Intermediate in Synthetic Rubber Manufacturing (50%)Processing as a reactant
  • Intermediate in All Other Basic Organic Chemical Manufacturing (20%)Processing as a reactant
  • Solvents (for cleaning or degreasing) in Asphalt Paving, Roofing, and Coating Materials Manufacturing (20%)Processing—incorporation into formulation, mixture, or reaction product
  • Lubricants and lubricant additives in Cyclic Crude and Intermediate Manufacturing (20%)Processing—incorporation into formulation, mixture, or reaction product
  • Adhesives and sealant chemicals in Computer and Electronic Product Manufacturing (20%)Processing—incorporation into formulation, mixture, or reaction product
  • Binder in Synthetic Rubber Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • Intermediate in All Other Chemical Product and Preparation ManufacturingProcessing as a reactant

Vendor Pricing

$0.04/gAaron Chemicals LLC
CountryHong Kong
Pack$22.00 / 500 g
Purity98%
Vendors14 available

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

13 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina Hong Kong$0.05500 g98%
Fluorochem UKUnited Kingdom$0.19100 g95%
A2B Chem LLCUnited States$0.261 kg98%
AA BLOCKSUnited States$0.281 kg98%
Ambeed, Inc.United States$0.361 kg98%
Biopharma PEG Scientific Inc.United States$0.36500 g98%
Combi-Blocks, Inc.United States$0.361 kg98%
AK Scientific SpecializedUnited States$0.38500 g98%
AK Scientific, Inc.United States$0.51500 g99%
Sigma-Aldrich (Rush Stock)Germany$0.92100 g98%
Sigma-AldrichGermany$0.92100 g98%
Angene International LimitedUnited States$2.8025 g98%
AngeneChina Hong Kong$4266.6730 mg98%

Chemical Identity

CAS541-05-9
PubChem CID10914
DTXSIDDTXSID6027185
FormulaC6H18O3Si3
Mol. Weight222.46 g/mol
SMILESC[Si]1(O[Si](O[Si](O1)(C)C)(C)C)C

Data Sources

DTXSID60271852026-04-06

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

Archive: data/sources/comptox/dsstox_identifiers.csv

109142026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/10914/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/10914.json

541-05-92026-04-24

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

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

CAS 541-05-92026-04-25

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

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