4-PHENYLISOXAZOLE

Also known as: 4-Phenyl-1,2-oxazole, Isoxazole, 4-phenyl-, 4-phenylisoxazole, 4-phenyl-isoxazole

4-PHENYLISOXAZOLE (CAS 2439-92-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H7NO and a molecular weight of 145.15800 g/mol. Key properties include a boiling point of 281.3ºC at 760mmHg, a density of 1.11g/cm3 and a flash point of 128.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2439-92-1
Jingsj CID: J-1319228-4
Molecular Formula: C₉H₇NO
Molecular Weight: 145.15800 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	281.3ºC at 760mmHg
Density	1.11g/cm3
Flash Point	128.9ºC
Exact Mass	145.05300
PSA	26.03000
LogP	2.34160
Vapor Pressure	0.00613mmHg at 25°C
Refractive Index	1.543

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 4-PHENYLISOXAZOLE?

The CAS number of 4-PHENYLISOXAZOLE is 2439-92-1.

What are the molecular formula and molecular weight of 4-PHENYLISOXAZOLE?

4-PHENYLISOXAZOLE has molecular formula C9H7NO and molecular weight 145.15800 g/mol.

What are the upstream and downstream products of 4-PHENYLISOXAZOLE?

For 4-PHENYLISOXAZOLE, Upstream Products: Phenylacetylene, 1-(2-Aminoethyl)-2-imidazolidinone, 2-Isonitrosoacetophenone; Downstream Products: 4-Phenyloxazole.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-PHENYLISOXAZOLE (CAS 2439-92-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1319228-4 (accessed 2026-11-09).

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