3-hydroxythiophene-2-carboxylic acid
Also known as: 3-hydroxy-2-thiophenecarboxylic acid, 2-thiophenecarboxylic acid, 3-hydroxy-, 3-hydroxythiophene-2-carboxylic acid, 2-carboxy-3-hydroxythiophene, 3-hydroxy-2-thenoic acid
3-hydroxythiophene-2-carboxylic acid (CAS 5118-07-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4O3S and a molecular weight of 144.14800 g/mol. Key properties include a boiling point of 326.374ºC at 760 mmHg, a density of 1.604g/cm3 and a flash point of 151.186ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5118-07-0
- Jingsj CID
- J-1155680-2
- Molecular Formula
- C5H4O3S
- Molecular Weight
- 144.14800 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 326.374ºC at 760 mmHg |
|---|---|
| Density | 1.604g/cm3 |
| Flash Point | 151.186ºC |
| Exact Mass | 143.98800 |
| PSA | 85.77000 |
| LogP | 1.15190 |
| Refractive Index | 1.667 |
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 3-hydroxythiophene-2-carboxylic acid?
The CAS number of 3-hydroxythiophene-2-carboxylic acid is 5118-07-0.
What are the molecular formula and molecular weight of 3-hydroxythiophene-2-carboxylic acid?
3-hydroxythiophene-2-carboxylic acid has molecular formula C5H4O3S and molecular weight 144.14800 g/mol.
What are the upstream and downstream products of 3-hydroxythiophene-2-carboxylic acid?
For 3-hydroxythiophene-2-carboxylic acid, Upstream Products: 3-(Benzyloxy)-2-thiophenecarboxylic acid, Methyl 3-hydroxythiophene-2-carboxylate, Ethyl 3-hydroxythiophene-2-carboxylate; Downstream Products: Methyl 3-methoxythiophene-2-carboxylate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-hydroxythiophene-2-carboxylic acid (CAS 5118-07-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1155680-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.