1,2-Benzisoxazole
Also known as: benz[d]isoxazole, benzo[d]isoxazole, 1,2-benzoisoxazole, 1-oxa-2-azaindene, 1-oxa-2-aza-1H-indene, 4,5-benzisoxazole, indoxazene, isoindoxazine
1,2-Benzisoxazole (CAS 271-95-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H5NO and a molecular weight of 119.12100 g/mol. Key properties include a boiling point of 90-92 °C15 mm Hg(lit.), a density of 1.174 g/mL at 25 °C(lit.) and a flash point of 86°C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 271-95-4
- Jingsj CID
- J-44385-6
- Molecular Formula
- C7H5NO
- Molecular Weight
- 119.12100 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 90-92 °C15 mm Hg(lit.) |
|---|---|
| Density | 1.174 g/mL at 25 °C(lit.) |
| Flash Point | 86°C |
| Exact Mass | 119.03700 |
| PSA | 26.03000 |
| LogP | 1.82780 |
| Vapor Pressure | 0.309mmHg at 25°C |
| Refractive Index | n20/D 1.561(lit.) |
| Storage Conditions | 2-8°C |
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?
The CAS number of 1,2-Benzisoxazole is 271-95-4.
What are the molecular formula and molecular weight of 1,2-Benzisoxazole?
1,2-Benzisoxazole has molecular formula C7H5NO and molecular weight 119.12100 g/mol.
What are the upstream and downstream products of 1,2-Benzisoxazole?
For 1,2-Benzisoxazole, Upstream Products: Salicylaldoxime, tert-Butyl 4-(iodomethyl)piperidine-1-carboxylate, Salicylaldehyde; Downstream Products: 5-Nitro-1,2-benzisoxazole, N-Ethylbenzisoxazolium tetrafluoroborate, 5-Acetyl-2-hydroxybenzonitrile.
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 (CAS 271-95-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44385-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.