3-(Pentamethyldisiloxanyl)propyl methacrylate
CAS 18151-85-4
2-Propenoic acid, 2-methyl-, 3-(1,1,3,3,3-pentamethyl-1-disiloxanyl)propyl ester
EPA and Census publish no US supply data for this chemical.
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
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
4 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 |
|---|---|---|---|---|
| A2B Chem LLC (2 weeks) | United States | $14.16 | 25 g | — |
| Angene Chemical | China → Hong Kong | $14.20 | 100 g | — |
| AA BLOCKS (2 weeks) | United States | $14.64 | 25 g | — |
| Angene | China → Hong Kong | $4266.67 | 30 mg | — |
Chemical Identity
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
3-(Pentamethyldisiloxanyl)propyl methacrylate (CAS 18151-85-4) https://chemicalindependence.com/chemical/18151-85-4/ EPA TSCA Inventory: CAS 18151-85-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory