1-Benzofuran-5-carboxylic acid
Also known as: Benzofuran-5-carboxylic acid, 5-Benzofurancarboxylic acid, Benzo[b]furan-5-carboxylic acid, 1-benzofunan-5-carboxylic acid, RARECHEM AL BE 1369, 3a,7a-dihydrobenzofuran-5-carboxylic acid, 5-Carboxybenzo[b]furan
1-Benzofuran-5-carboxylic acid (CAS 90721-27-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H6O3 and a molecular weight of 162.14200 g/mol. Key properties include a melting point of 189-190ºC, a boiling point of 325.6ºC at 760mmHg, a density of 1.363g/cm3 and a flash point of 150.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 90721-27-0
- Jingsj CID
- J-1516862-4
- Molecular Formula
- C9H6O3
- Molecular Weight
- 162.14200 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 189-190ºC |
|---|---|
| Boiling Point | 325.6ºC at 760mmHg |
| Density | 1.363g/cm3 |
| Flash Point | 150.7ºC |
| Exact Mass | 162.03200 |
| PSA | 50.44000 |
| LogP | 2.13100 |
| Refractive Index | 1.649 |
Customs & Trade Information
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. 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 1-Benzofuran-5-carboxylic acid?
The CAS number of 1-Benzofuran-5-carboxylic acid is 90721-27-0.
What are the molecular formula and molecular weight of 1-Benzofuran-5-carboxylic acid?
1-Benzofuran-5-carboxylic acid has molecular formula C9H6O3 and molecular weight 162.14200 g/mol.
What are the upstream and downstream products of 1-Benzofuran-5-carboxylic acid?
For 1-Benzofuran-5-carboxylic acid, Upstream Products: Methyl benzofuran-5-carboxylate, Methyl 2,3-dihydrobenzofuran-5-carboxylate, 5-Acetyl-2,3-dihydrobenzo[b]furan; Downstream Products: Methyl benzofuran-5-carboxylate, Benzofuran-5-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. "1-Benzofuran-5-carboxylic acid (CAS 90721-27-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516862-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.