5-Formyl-2-thiopheneboronic acid

5-醛基-2-噻吩硼酸

Also known as: 5-Formylthienyl-2-boronic acid, 5-Formylthiophene-2-boronic acid, (5-Formyl-2-thienyl)boronic acid, Boronic acid, B-(5-formyl-2-thienyl)-, 5-Formylthien-2-ylboronic acid, 5-Formylthiophen-2-ylboronic acid, 5-Formyl-2-thienylboronic acid, 5-Formylthiophen-2-boronic acid

5-Formyl-2-thiopheneboronic acid (CAS 4347-33-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5BO3S and a molecular weight of 155.967 g/mol. It is also known as 5-Formylthienyl-2-boronic acid, 5-Formylthiophene-2-boronic acid and (5-Formyl-2-thienyl)boronic acid. Key properties include a melting point of 132-135 °C(lit.), a boiling point of 395.1±52.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 192.7±30.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

4347-33-5

Jingsj CID

J-39327-4

Molecular Formula

C₅H₅BO₃S

Chinese Name

5-醛基-2-噻吩硼酸

Molecular Weight

155.967 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026