4-Phenyloxazole

Also known as: 4-Phenyl-1,3-oxazole, Oxazole, 4-phenyl-, 4-Phenyloxazol

4-Phenyloxazole (CAS 20662-89-9) 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 261.6ºC at 760 mmHg, a density of 1.11g/cm3 and a flash point of 102.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 20662-89-9
Jingsj CID: J-1496218-6
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	261.6ºC at 760 mmHg
Density	1.11g/cm3
Flash Point	102.8ºC
Exact Mass	145.05300
PSA	26.03000
LogP	2.34160
Vapor Pressure	0.0186mmHg 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-Phenyloxazole?

The CAS number of 4-Phenyloxazole is 20662-89-9.

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

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

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

For 4-Phenyloxazole, Upstream Products: methyl formate, 2-Bromoacetophenone, Water; Downstream Products: 3-Furanmethanol, Dimethyl 3,4-furandicarboxylate, 2-Phenylisonicotinic Acid.

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-Phenyloxazole (CAS 20662-89-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1496218-6 (accessed 2026-11-09).

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