Diphenyldiethoxysilane
CAS 2553-19-7
Benzene, 1,1'-(diethoxysilylene)bis-
EPA and Census publish no US supply data for this chemical.
US productionNot reported
Top sourceNo public record
This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.
Why supply is unknownWhere It Comes From
EPA and Census publish no US supply data for this chemical.
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Vendor Pricing
$0.48/gA2B Chem LLC
CountryUnited States
Pack$239.00 / 500 g
Purity97%
Vendors14 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
13 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 | $0.62 | 500 g | 97% |
| Aaron Chemicals LLC | Hong Kong | $0.73 | 500 g | — |
| Fluorochem UK | United Kingdom | $0.76 | 500 g | 95% |
| Combi-Blocks, Inc. | United States | $0.79 | 500 g | 98% |
| BLD Pharmatech Co., Limited | United States | $0.79 | 500 g | 97% |
| BLD Pharmatech Ltd. | China | $0.79 | 500 g | 97% |
| Ambeed, Inc. | United States | $0.79 | 500 g | 97% |
| Angene Chemical | China → Hong Kong | $0.84 | 500 g | — |
| AK Scientific Specialized | United States | $1.11 | 100 g | 95% |
| AK Scientific, Inc. | United States | $1.55 | 100 g | 97% |
| Angene International Limited | United States | $2.06 | 100 g | 95% |
| BLD Pharmatech GmbH | Germany | $4.00 | 5 g | 97% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | — |
Chemical Identity
CAS2553-19-7
PubChem CIDNot recorded
DTXSIDDTXSID4062519
FormulaC16H20O2Si
Mol. Weight272.419 g/mol
SMILESCCO[Si](OCC)(C1=CC=CC=C1)C1=CC=CC=C1
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
Diphenyldiethoxysilane (CAS 2553-19-7) https://chemicalindependence.com/chemical/2553-19-7/ EPA TSCA Inventory: CAS 2553-19-7. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory