![Molecular structure of 4-Bromobenzo[b]thiophene-2-carboxylic acid (CAS 5194-37-6)](/images/chem_structures_svg/175/5194-37-6.svg)
4-Bromobenzo[b]thiophene-2-carboxylic acid
Also known as: 4-Bromo-1-benzothiophene-2-carboxylic acid, Benzo[b]thiophene-2-carboxylic acid, 4-bromo-, 4-Bromobenzothiophene-2-carboxylic acid
4-Bromobenzo[b]thiophene-2-carboxylic acid (CAS 5194-37-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H5BrO2S and a molecular weight of 257.104 g/mol. Key properties include a melting point of 265ºC, a boiling point of 429.7±25.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 213.7±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5194-37-6
- Jingsj CID
- J-1446950-2
- Molecular Formula
- C9H5BrO2S
- Molecular Weight
- 257.104 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 265ºC |
|---|---|
| Boiling Point | 429.7±25.0 °C at 760 mmHg |
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 213.7±23.2 °C |
| Exact Mass | 255.919357 |
| PSA | 65.54000 |
| LogP | 4.65 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.739 |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 4-Bromobenzo[b]thiophene-2-carboxylic acid?
The CAS number of 4-Bromobenzo[b]thiophene-2-carboxylic acid is 5194-37-6.
What are the molecular formula and molecular weight of 4-Bromobenzo[b]thiophene-2-carboxylic acid?
4-Bromobenzo[b]thiophene-2-carboxylic acid has molecular formula C9H5BrO2S and molecular weight 257.104 g/mol.
What are the upstream and downstream products of 4-Bromobenzo[b]thiophene-2-carboxylic acid?
For 4-Bromobenzo[b]thiophene-2-carboxylic acid, Upstream Products: 2-Bromo-6-fluorobenzaldehyde, Thioglycolic acid, Methyl 4-bromobenzo[b]thiophene-2-carboxylate; Downstream Products: 4-Bromobenzo[b]thiophene, 4-bromo-1-benzothiophene-2-carbonyl chloride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Bromobenzo[b]thiophene-2-carboxylic acid (CAS 5194-37-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1446950-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.