Disilane, 1,2-dimethyl-1,1,2,2-tetraphenyl-
CAS 1172-76-5
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
$14.00/gA2B Chem LLC
CountryUnited States
Pack$70.00 / 5 g
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 |
|---|---|---|---|---|
| Aaron Chemicals LLC | Hong Kong | $15.60 | 5 g | 97% |
| Angene Chemical | China → Hong Kong | $16.00 | 5 g | 97% |
| Combi-Blocks, Inc. | United States | $17.00 | 5 g | 98% |
| AA BLOCKS | United States | $17.80 | 5 g | 98% |
| Fluorochem EU | Germany | $22.99 | 1 g | 97% |
| BLD Pharmatech Co., Limited | United States | $32.00 | 1 g | 98% |
| Ambeed, Inc. | United States | $32.00 | 1 g | 98% |
| AstaTech (2 weeks) | United States | $35.00 | 5 g | 95% |
| Angene International Limited | United States | $70.80 | 5 g | 98% |
| BLD Pharmatech GmbH | Germany | $80.00 | 250 mg | 98% |
| BLD Pharmatech Ltd. | China | $80.00 | 250 mg | 98% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 97% |
Chemical Identity
CAS1172-76-5
PubChem CIDNot recorded
DTXSIDDTXSID1061578
FormulaC26H26Si2
Mol. Weight394.664 g/mol
SMILESC[Si](C1=CC=CC=C1)(C1=CC=CC=C1)[Si](C)(C1=CC=CC=C1)C1=CC=CC=C1
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
Disilane, 1,2-dimethyl-1,1,2,2-tetraphenyl- (CAS 1172-76-5) https://chemicalindependence.com/chemical/1172-76-5/ EPA TSCA Inventory: CAS 1172-76-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory