3-Boronothiophene-2-carboxylic acid
3-硼酸-2-噻吩羧酸
Also known as: 2-Carboxythiophene-3-boronic acid, 3-Borono-2-thiophenecarboxylic acid, 3-(Dihydroxyboryl)-2-thiophenecarboxylic acid, 2-Thiophenecarboxylic acid, 3-borono-, 3-boronothiophene-2-carboxylic acid
3-Boronothiophene-2-carboxylic acid (CAS 5503-74-2) 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 2-Carboxythiophene-3-boronic acid, 3-Borono-2-thiophenecarboxylic acid and 3-(Dihydroxyboryl)-2-thiophenecarboxylic acid. Key properties include a boiling point of 442.4±55.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 221.3±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5503-74-2
- Jingsj CID
- J-1032573-1
- Molecular Formula
- C5H5BO4S
- Chinese Name
- 3-硼酸-2-噻吩羧酸
- Molecular Weight
- 171.967 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 442.4±55.0 °C at 760 mmHg |
|---|---|
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 221.3±31.5 °C |
Frequently Asked Questions
What is the CAS number of 3-Boronothiophene-2-carboxylic acid?
The CAS number of 3-Boronothiophene-2-carboxylic acid is 5503-74-2.
What are the molecular formula and molecular weight of 3-Boronothiophene-2-carboxylic acid?
3-Boronothiophene-2-carboxylic 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. "3-Boronothiophene-2-carboxylic acid (CAS 5503-74-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1032573-1 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.