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2-phenyl-1,3,4-oxadiazole

Also known as: 2-phenyloxadiazole, 5-phenyl-1,3,4-oxadiazole, 1,3,4-oxadiazole, 2-phenyl-, NSC 94884

2-phenyl-1,3,4-oxadiazole (CAS 825-56-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H6N2O and a molecular weight of 146.146 g/mol. Key properties include a boiling point of 253.8±23.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 111.0±16.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
825-56-9
Jingsj CID
J-944634-8
Molecular Formula
C8H6N2O
Molecular Weight
146.146 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point253.8±23.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point111.0±16.6 °C
Exact Mass146.048019
PSA38.92000
LogP1.31
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.547

Customs & Trade Information

HS Code2934999090
Summary2934999090. 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 2-phenyl-1,3,4-oxadiazole?

The CAS number of 2-phenyl-1,3,4-oxadiazole is 825-56-9.

What are the molecular formula and molecular weight of 2-phenyl-1,3,4-oxadiazole?

2-phenyl-1,3,4-oxadiazole has molecular formula C8H6N2O and molecular weight 146.146 g/mol.

What are the upstream and downstream products of 2-phenyl-1,3,4-oxadiazole?

For 2-phenyl-1,3,4-oxadiazole, Upstream Products: (Isocyanoimino)triphenylphosphorane, benzoic acid, Benzohydrazide; Downstream Products: 2,5-Diphenyl-1,3,4-oxadiazole, 3-Phenyl-1H-1,2,4-triazole, 2-(4-Bromophenyl)-5-phenyl-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. "2-phenyl-1,3,4-oxadiazole (CAS 825-56-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-944634-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.