5-Methyl-3-phenyl-4-(1H-pyrazol-5-yl)isoxazole

5-甲基-3-苯基-4-(1H-吡唑-5-基)异噁唑

Also known as: 5-methyl-3-phenyl-4-(1H-pyrazol-5-yl)-1,2-oxazole, 5-methyl-3-phenyl-4-(1H-pyrazol-5-yl)isoxazole, HMS566G21

5-Methyl-3-phenyl-4-(1H-pyrazol-5-yl)isoxazole (CAS 265125-69-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H11N3O and a molecular weight of 225.24600 g/mol. It is also known as 5-methyl-3-phenyl-4-(1H-pyrazol-5-yl)-1,2-oxazole, 5-methyl-3-phenyl-4-(1H-pyrazol-5-yl)isoxazole and HMS566G21. Key properties include a boiling point of 398.8ºC at 760mmHg, a density of 1.225g/cm3 and a flash point of 197.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 265125-69-7
Jingsj CID: J-1516951-8
Molecular Formula: C₁₃H₁₁N₃O
Chinese Name: 5-甲基-3-苯基-4-(1H-吡唑-5-基)异噁唑
Molecular Weight: 225.24600 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	398.8ºC at 760mmHg
Density	1.225g/cm3
Flash Point	197.3ºC

Frequently Asked Questions

What is the CAS number of 5-Methyl-3-phenyl-4-(1H-pyrazol-5-yl)isoxazole?

The CAS number of 5-Methyl-3-phenyl-4-(1H-pyrazol-5-yl)isoxazole is 265125-69-7.

What are the molecular formula and molecular weight of 5-Methyl-3-phenyl-4-(1H-pyrazol-5-yl)isoxazole?

5-Methyl-3-phenyl-4-(1H-pyrazol-5-yl)isoxazole has molecular formula C13H11N3O and molecular weight 225.24600 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-Methyl-3-phenyl-4-(1H-pyrazol-5-yl)isoxazole (CAS 265125-69-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516951-8 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.