1,2-Benzisoxazole-3-carboxylic acid
Also known as: Benzo[d]isoxazole-3-carboxylic acid, Benzisoxazole-3-carboxylic acid, 1,2-Benzoxazole-3-carboxylic acid, 1,2-Benzo[d]oxazol-3-carboxylic acid, 3-carboxy-1,2-benzisoxazole, Zonisamide Impurity 8
1,2-Benzisoxazole-3-carboxylic acid (CAS 28691-47-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H5NO3 and a molecular weight of 163.130 g/mol. Key properties include a boiling point of 379.8±15.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 183.5±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 28691-47-6
- Jingsj CID
- J-1524549-5
- Molecular Formula
- C8H5NO3
- Molecular Weight
- 163.130 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 379.8±15.0 °C at 760 mmHg |
|---|---|
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 183.5±20.4 °C |
| Exact Mass | 163.026947 |
| PSA | 63.33000 |
| LogP | 1.31 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.661 |
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 1,2-Benzisoxazole-3-carboxylic acid?
The CAS number of 1,2-Benzisoxazole-3-carboxylic acid is 28691-47-6.
What are the molecular formula and molecular weight of 1,2-Benzisoxazole-3-carboxylic acid?
1,2-Benzisoxazole-3-carboxylic acid has molecular formula C8H5NO3 and molecular weight 163.130 g/mol.
What are the upstream and downstream products of 1,2-Benzisoxazole-3-carboxylic acid?
For 1,2-Benzisoxazole-3-carboxylic acid, Upstream Products: Ethyl 1,2-benzisoxazole-3-carboxylate, (2-Nitrophenyl)acetic acid, Ethyl 2-(2-nitrophenyl)acetate; Downstream Products: 2-Cyanophenol, Carbon dioxide, Ethanone, 1-(1,2-benzisoxazol-3-yl)- (9CI).
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,2-Benzisoxazole-3-carboxylic acid (CAS 28691-47-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1524549-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.