Methyltris(trimethylsiloxy)silane
No U.S. production. America imports the entire domestic supply.
US ProductionZero
Import Value$537M
Import Volume550.0K lbs
Import Dependency100%
Top SourceChina 39%
Methyltris(trimethylsiloxy)silane · US import value by year
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 importers (1)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Shin Etsu Silicones Of America
Why It Matters
No data available
Vendor Pricing
$0.58/gAaron Chemicals LLC
CountryHong Kong
Pack$58.00 / 100 g
Purity98%
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 | $0.63 | 100 g | 98% |
| A2B Chem LLC | United States | $0.97 | 100 g | 97% |
| AA BLOCKS | United States | $1.25 | 100 g | 97% |
| Ambeed, Inc. | United States | $1.32 | 100 g | 97% |
| Combi-Blocks, Inc. | United States | $1.36 | 500 g | 98% |
| AK Scientific, Inc. | United States | $3.16 | 25 g | 98% |
| Angene International Limited | United States | $6.28 | 25 g | 98% |
| Fluorochem EU | Germany | $26.62 | 1 g | 98% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
Chemical Identity
CAS17928-28-8
PubChem CID28838
DTXSIDDTXSID9025669
FormulaC10H30O3Si4
Mol. Weight310.68 g/mol
SMILESC[Si](C)(C)O[Si](C)(O[Si](C)(C)C)O[Si](C)(C)C
Data Sources
DTXSID90256692026-04-06
https://doi.org/10.23645/epacomptox.5588566
Archive: data/sources/comptox/dsstox_identifiers.csv
288382026-04-06
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/28838/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON
Archive: data/sources/pubchem_properties/28838.json
17928-28-82026-04-24
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr.csv