5-Phenylisoxazole

Also known as: 5-phenyl-1,2-oxazole, 1-(Isoxazol-5-yl)benzene, Isoxazole, 5-phenyl-, BUTTPARK 81\09-55, 5-Phenyl-isooxazole

5-Phenylisoxazole (CAS 1006-67-3) 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 melting point of 22 °C, a boiling point of 279.6ºC at 760mmHg, a density of 1.11g/cm3 and a flash point of 127.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1006-67-3
Jingsj CID: J-1374129-2
Molecular Formula: C₉H₇NO
Molecular Weight: 145.15800 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	22 °C
Boiling Point	279.6ºC at 760mmHg
Density	1.11g/cm3
Flash Point	127.4ºC
Exact Mass	145.05300
PSA	26.03000
LogP	2.34160
Vapor Pressure	0.00675mmHg at 25°C
Refractive Index	1.543
Storage Conditions	0-10°C

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 5-Phenylisoxazole?

The CAS number of 5-Phenylisoxazole is 1006-67-3.

What are the molecular formula and molecular weight of 5-Phenylisoxazole?

5-Phenylisoxazole has molecular formula C9H7NO and molecular weight 145.15800 g/mol.

What are the upstream and downstream products of 5-Phenylisoxazole?

For 5-Phenylisoxazole, Upstream Products: Acetophenone, Ethyl formate, 3-(Dimethylamino)-1-phenyl-2-propen-1-one; Downstream Products: N-Ethyl-5-phenylisoxazolium-3'-sulfonate, 3-Oxo-3-phenylpropanenitrile, 5-(4-Nitrophenyl)isoxazole.

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. "5-Phenylisoxazole (CAS 1006-67-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1374129-2 (accessed 2026-11-09).

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