2-(Trimethylsilyl)vinylboronic acid pinacol cyclic ester

2-(三甲基硅基)乙烯硼酸频哪醇酯

Also known as: (E)-4,4,5,5-Tetramethyl-2-[2-(trimethylsilyl)ethenyl]-1,3,2-dioxaborolane, (E)-trimethyl(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)silane, 1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-[(1E)-2-(trimethylsilyl)ethenyl]-, trimethyl-[2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethenyl]silane, MFCD03788735

2-(Trimethylsilyl)vinylboronic acid pinacol cyclic ester (CAS 126688-99-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H23BO2Si and a molecular weight of 226.19600 g/mol. It is also known as (E)-4,4,5,5-Tetramethyl-2-[2-(trimethylsilyl)ethenyl]-1,3,2-dioxaborolane, (E)-trimethyl(2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)vinyl)silane and 1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-[(1E)-2-(trimethylsilyl)ethenyl]-. Key properties include a boiling point of 196.9ºC at 760mmHg, a density of 0.88g/cm3 and a flash point of 72.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

126688-99-1

Jingsj CID

J-49349-9

Molecular Formula

C₁₁H₂₃BO₂Si

Chinese Name

2-(三甲基硅基)乙烯硼酸频哪醇酯

Molecular Weight

226.19600 g/mol

Category

Organic Acids

Last updated

8/21/2026