1,3,4-Oxadiazole
Also known as: [1,3,4]Oxadiazole, 1,3,4-oxadiazole, 1-Oxa-3,4-diazacyclopentadiene
1,3,4-Oxadiazole (CAS 288-99-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C2H2N2O and a molecular weight of 70.050 g/mol. Key properties include a boiling point of 150.0±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 62.4±12.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 288-99-3
- Jingsj CID
- J-1495120-3
- Molecular Formula
- C2H2N2O
- Molecular Weight
- 70.050 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 150.0±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 62.4±12.7 °C |
| Exact Mass | 70.016716 |
| PSA | 38.92000 |
| LogP | -0.74 |
| Vapor Pressure | 5.0±0.3 mmHg at 25°C |
| Refractive Index | 1.416 |
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 1,3,4-Oxadiazole?
The CAS number of 1,3,4-Oxadiazole is 288-99-3.
What are the molecular formula and molecular weight of 1,3,4-Oxadiazole?
1,3,4-Oxadiazole has molecular formula C2H2N2O and molecular weight 70.050 g/mol.
What are the upstream and downstream products of 1,3,4-Oxadiazole?
For 1,3,4-Oxadiazole, Upstream Products: 1,2-Diformylhydrazine; Downstream Products: 2,5-Diphenyl-1,3,4-oxadiazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3,4-Oxadiazole (CAS 288-99-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1495120-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.