5-Phenyloxazole-4-carboxylic acid
Also known as: 5-Phenyl-1,3-oxazole-4-carboxylic acid, 5-Phenyloxazole-4-carboxylic acid, 4-Oxazolecarboxylic acid, 5-phenyl-, 4-Carboxy-5-phenyl-1,3-oxazole, 5-Phenyl-4-oxazolecarboxylic acid, 5-phenyl-1,3-oxazole-4-carboxylic acid
5-Phenyloxazole-4-carboxylic acid (CAS 99924-18-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H7NO3 and a molecular weight of 189.167 g/mol. Key properties include a melting point of 181ºC, a boiling point of 354.7±22.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 168.3±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 99924-18-2
- Jingsj CID
- J-31414-7
- Molecular Formula
- C10H7NO3
- Molecular Weight
- 189.167 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 181ºC |
|---|---|
| Boiling Point | 354.7±22.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 168.3±22.3 °C |
| Exact Mass | 189.042587 |
| PSA | 63.33000 |
| LogP | 0.90 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.587 |
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 5-Phenyloxazole-4-carboxylic acid?
The CAS number of 5-Phenyloxazole-4-carboxylic acid is 99924-18-2.
What are the molecular formula and molecular weight of 5-Phenyloxazole-4-carboxylic acid?
5-Phenyloxazole-4-carboxylic acid has molecular formula C10H7NO3 and molecular weight 189.167 g/mol.
What are the upstream and downstream products of 5-Phenyloxazole-4-carboxylic acid?
For 5-Phenyloxazole-4-carboxylic acid, Upstream Products: Ethyl 5-phenyl-1,3-oxazole-4-carboxylate, Methyl 5-phenyloxazole-4-carboxylate; Downstream Products: 5-Phenyl-1,3-oxazole-4-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. "5-Phenyloxazole-4-carboxylic acid (CAS 99924-18-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31414-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.