5-Acetylthiophene-2-boronic acid pinacol ester

5-乙酰基-2-噻吩硼酸频哪醇酯

Also known as: 1-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl)ethanone, 1-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl)ethan-1-one, 1-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-thienyl]ethanone, 2-(5-acetylthien-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 2-acetyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene, 5-acetylthiophene-5-boronic acid pinacol ester, ethanone, 1-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-thienyl]-

5-Acetylthiophene-2-boronic acid pinacol ester (CAS 942070-32-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H17BO3S and a molecular weight of 252.13800 g/mol. It is also known as 1-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl)ethanone, 1-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl)ethan-1-one and 1-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-thienyl]ethanone. Key properties include a melting point of 64-66 ºC and a density of 1.12±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

942070-32-8

Jingsj CID

J-1515534-4

Molecular Formula

C₁₂H₁₇BO₃S

Chinese Name

5-乙酰基-2-噻吩硼酸频哪醇酯

Molecular Weight

252.13800 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026