3-Methylthiophene-2-boronic acid

3-甲基噻吩-2-硼酸

Also known as: 3-methyl-2-thienylboronic acid, 3-methyl-2-thiopheneboronic acid, (3-methylthiophen-2-yl)boronic acid, B-(3-methyl-2-thienyl)boronic acid, Boronic acid, B-(3-methyl-2-thienyl)-, MFCD00236049

3-Methylthiophene-2-boronic acid (CAS 177735-09-0) 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 3-methyl-2-thienylboronic acid, 3-methyl-2-thiopheneboronic acid and (3-methylthiophen-2-yl)boronic acid. Key properties include 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.
177735-09-0
Jingsj CID
J-1180815-4
Molecular Formula
C5H7BO2S
Chinese Name
3-甲基噻吩-2-硼酸
Molecular Weight
141.984 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point302.1±44.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point136.5±28.4 °C

Frequently Asked Questions

What is the CAS number of 3-Methylthiophene-2-boronic acid?

The CAS number of 3-Methylthiophene-2-boronic acid is 177735-09-0.

What are the molecular formula and molecular weight of 3-Methylthiophene-2-boronic acid?

3-Methylthiophene-2-boronic acid has molecular formula C5H7BO2S and molecular weight 141.984 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3-Methylthiophene-2-boronic acid (CAS 177735-09-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1180815-4 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.