3-(Triethoxysilyl)propyl methacrylate

甲基丙烯酸3-(三乙氧基硅基)丙酯

Also known as: 3-Methacryloyloxypropyltriethoxysilane, 3-(Triethoxysilyl)propyl methacrylate (stabilized with BHT), 3-(Triethoxysilyl)propyl methacrylate (stabilized with HQ), Methacrylic Acid 3-(Triethoxysilyl)propyl Ester, Triethoxy(3-methacryloyloxypropyl)silane, γ-Methacryloxypropyl triethoxysilane, Silquest Y-11878, Z-6036, Methacryloxypropyltriethoxysilane

3-(Triethoxysilyl)propyl methacrylate (CAS 21142-29-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H26O5Si and a molecular weight of 290.428 g/mol. It is also known as 3-Methacryloyloxypropyltriethoxysilane, 3-(Triethoxysilyl)propyl methacrylate (stabilized with BHT) and 3-(Triethoxysilyl)propyl methacrylate (stabilized with HQ). Key properties include a boiling point of 312.0±25.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 118.4±18.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

21142-29-0

Jingsj CID

J-1439017-5

Molecular Formula

C₁₃H₂₆O₅Si

Chinese Name

甲基丙烯酸3-(三乙氧基硅基)丙酯

Molecular Weight

290.428 g/mol

Category

Organic Acids

Last updated

8/21/2026