5-Methylthiophene-2-boronic acid pinacol ester

5-甲基噻吩-2-硼酸频哪醇酯

Also known as: 4,4,5,5-Tetramethyl-2-(5-methyl-2-thienyl)-1,3,2-dioxaborolane, 4,4,5,5-Tetramethyl-2-(5-methylthiophen-2-yl)-1,3,2-dioxaborolane, 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-5-methylthiophene, 2-(5-Methyl-2-thienyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 2-Methyl-5-(pinacolboryl)thiophene, 5-Methylthiophen-2-boronic acid pinacol ester, 5-Methylthiophene-2-boronic acid pinacol ester 95%, 5-(2-Methylthiophene)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-methylthiophene, OR2393

5-Methylthiophene-2-boronic acid pinacol ester (CAS 476004-80-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H17BO2S and a molecular weight of 224.12700 g/mol. It is also known as 4,4,5,5-Tetramethyl-2-(5-methyl-2-thienyl)-1,3,2-dioxaborolane, 4,4,5,5-Tetramethyl-2-(5-methylthiophen-2-yl)-1,3,2-dioxaborolane and 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-5-methylthiophene. Key properties include a boiling point of 308.2ºC at 760 mmHg, a density of 0.937 and a flash point of 105ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

476004-80-5

Jingsj CID

J-1177456-1

Molecular Formula

C₁₁H₁₇BO₂S

Chinese Name

5-甲基噻吩-2-硼酸频哪醇酯

Molecular Weight

224.12700 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026