(4-Methyl-3-thienyl)boronic acid

4-甲基-3-噻吩基硼酸

Also known as: 4-Methyl-3-thienylboronic acid, 4-Methyl-3-thiopheneboronic acid, (4-Methylthiophen-3-yl)boronic acid, (4-Methylthien-3-yl)boronic acid, Boronic acid, B-(4-methyl-3-thienyl)-, 4-Methylthiophene-3-boronic acid, 4-Methylthiophen-3-ylboronic acid

(4-Methyl-3-thienyl)boronic acid (CAS 177735-11-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H7BO2S and a molecular weight of 141.984 g/mol. It is also known as 4-Methyl-3-thienylboronic acid, 4-Methyl-3-thiopheneboronic acid and (4-Methylthiophen-3-yl)boronic acid. Key properties include a melting point of 138-144ºC, a boiling point of 302.1±44.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 136.5±28.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

177735-11-4

Jingsj CID

J-1345611-1

Molecular Formula

C₅H₇BO₂S

Chinese Name

4-甲基-3-噻吩基硼酸

Molecular Weight

141.984 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026