5-Carboxythiophene-2-boronic acid

5-羧基噻吩-2-硼酸

Also known as: 5-Boronothiophene-2-carboxylic acid, 2-Carboxythiophene-5-boronic acid, 5-Borono-2-thiophenecarboxylic acid, 5-(Dihydroxyboryl)-2-thiophenecarboxylic acid, 2-Thiophenecarboxylic acid, 5-borono-

5-Carboxythiophene-2-boronic acid (CAS 465515-31-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5BO4S and a molecular weight of 171.967 g/mol. It is also known as 5-Boronothiophene-2-carboxylic acid, 2-Carboxythiophene-5-boronic acid and 5-Borono-2-thiophenecarboxylic acid. Key properties include a melting point of 135-136ºC, a boiling point of 467.6±55.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 236.6±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
465515-31-5
Jingsj CID
J-1524534-4
Molecular Formula
C5H5BO4S
Chinese Name
5-羧基噻吩-2-硼酸
Molecular Weight
171.967 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point135-136ºC
Boiling Point467.6±55.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point236.6±31.5 °C

Frequently Asked Questions

What is the CAS number of 5-Carboxythiophene-2-boronic acid?

The CAS number of 5-Carboxythiophene-2-boronic acid is 465515-31-5.

What are the molecular formula and molecular weight of 5-Carboxythiophene-2-boronic acid?

5-Carboxythiophene-2-boronic acid has molecular formula C5H5BO4S and molecular weight 171.967 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Carboxythiophene-2-boronic acid (CAS 465515-31-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1524534-4 (accessed 2026-10-25).

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