3-(Pentamethyldisiloxanyl)propyl methacrylate
Also known as: 3-Methacryloxypropylpentamethyldisiloxane, 3-METHACRYLOXYPROPYL PENTAMETHYL DISILOXANE, 3-(Pentamethyldisiloxanyl)propyl 2-methylprop-2-enoate, 2-Propenoic acid, 2-methyl-, 3-(pentamethyldisiloxanyl)propyl ester, 2-Propenoic acid, 2-methyl-, 3-(1,1,3,3,3-pentamethyldisiloxanyl)propyl ester, Methacryloxypropylpentamethyldisiloxane, EINECS 242-037-7
3-(Pentamethyldisiloxanyl)propyl methacrylate (CAS 18151-85-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H26O3Si2 and a molecular weight of 274.504 g/mol. Key properties include a boiling point of 266.6±23.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 95.6±18.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18151-85-4
- Jingsj CID
- J-1497967-0
- Molecular Formula
- C12H26O3Si2
- Molecular Weight
- 274.504 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 266.6±23.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 95.6±18.2 °C |
| Exact Mass | 274.142059 |
| PSA | 35.53000 |
| LogP | 5.86 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.430 |
| Storage Conditions | below 5° C |
Customs & Trade Information
| HS Code | 2916140000 |
|---|---|
| Summary | 2916140000. other esters of methacrylic acid. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:80.0% |
Frequently Asked Questions
What is the CAS number of 3-(Pentamethyldisiloxanyl)propyl methacrylate?
The CAS number of 3-(Pentamethyldisiloxanyl)propyl methacrylate is 18151-85-4.
What are the molecular formula and molecular weight of 3-(Pentamethyldisiloxanyl)propyl methacrylate?
3-(Pentamethyldisiloxanyl)propyl methacrylate has molecular formula C12H26O3Si2 and molecular weight 274.504 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-(Pentamethyldisiloxanyl)propyl methacrylate (CAS 18151-85-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1497967-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.