2-Thiophenecarboxylic acid
Also known as: Thiophene-2-carboxylic acid, 2-Thenoic acid, 2-Thiophenic acid, alpha-Thiophenecarboxylic acid, Thiofuroic acid, THIOPHENECARBOXYLIC ACID, MFCD00005437, EINECS 208-423-4
2-Thiophenecarboxylic acid (CAS 527-72-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4O2S and a molecular weight of 128.149 g/mol. Key properties include a melting point of 125-127 °C(lit.), a boiling point of 260.0±0.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 117.8±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 527-72-0
- Jingsj CID
- J-44191-8
- Molecular Formula
- C5H4O2S
- Molecular Weight
- 128.149 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 125-127 °C(lit.) |
|---|---|
| Boiling Point | 260.0±0.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 117.8±19.8 °C |
| Exact Mass | 127.993202 |
| PSA | 65.54000 |
| LogP | 1.57 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.607 |
| Additional Property | 80 g/L (20 ºC) |
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 2-Thiophenecarboxylic acid?
The CAS number of 2-Thiophenecarboxylic acid is 527-72-0.
What are the molecular formula and molecular weight of 2-Thiophenecarboxylic acid?
2-Thiophenecarboxylic acid has molecular formula C5H4O2S and molecular weight 128.149 g/mol.
What are the upstream and downstream products of 2-Thiophenecarboxylic acid?
For 2-Thiophenecarboxylic acid, Upstream Products: 2,2'-Thenoin, 2-Thiophenemethanol, Carbon dioxide; Downstream Products: tert-Butyl thiophen-2-ylcarbamate, N-(thiophen-2-ylcarbonyl)glycine, thiophene-2,5-dicarboxylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Thiophenecarboxylic acid (CAS 527-72-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44191-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.