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2,5-bis(4-chlorophenyl)-1,3,4-oxadiazole

Also known as: 1,3,4-Oxadiazole, 2,5-bis(4-chlorophenyl)-, hms1528l15

2,5-bis(4-chlorophenyl)-1,3,4-oxadiazole (CAS 2491-90-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H8Cl2N2O and a molecular weight of 291.13200 g/mol. Key properties include a boiling point of 425.9ºC at 760mmHg, a density of 1.365g/cm3 and a flash point of 211.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2491-90-9
Jingsj CID
J-1380976-2
Molecular Formula
C14H8Cl2N2O
Molecular Weight
291.13200 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point425.9ºC at 760mmHg
Density1.365g/cm3
Flash Point211.4ºC
Exact Mass290.00100
PSA38.92000
LogP4.71040
Vapor Pressure4.58E-07mmHg at 25°C
Refractive Index1.608

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 2,5-bis(4-chlorophenyl)-1,3,4-oxadiazole?

The CAS number of 2,5-bis(4-chlorophenyl)-1,3,4-oxadiazole is 2491-90-9.

What are the molecular formula and molecular weight of 2,5-bis(4-chlorophenyl)-1,3,4-oxadiazole?

2,5-bis(4-chlorophenyl)-1,3,4-oxadiazole has molecular formula C14H8Cl2N2O and molecular weight 291.13200 g/mol.

What are the upstream and downstream products of 2,5-bis(4-chlorophenyl)-1,3,4-oxadiazole?

For 2,5-bis(4-chlorophenyl)-1,3,4-oxadiazole, Upstream Products: 4-Chlorobenzoic acid, 4-Chlorobenzhydrazide, 4-Chlorobenzotrichloride; Downstream Products: N,N'-Dibenzoylhydrazine, benzoic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2,5-bis(4-chlorophenyl)-1,3,4-oxadiazole (CAS 2491-90-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1380976-2 (accessed 2026-11-09).

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