4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol

4,5-二氢-5-甲基-3,4-二苯基-5-异恶唑醇

Also known as: 5-Methyl-3,4-diphenyl-4,5-dihydroisoxazol-5-ol, 5-Methyl-3,4-diphenyl-4,5-dihydro-1,2-oxazol-5-ol, Parecoxib Impurity 12, Parecoxib Impurity U, Parecoxib Sodium Impurity U, Parecoxib-001, (5S)-5-Methyl-3,4-diphenyl-4,5-dihydroisoxazol-5-ol

4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol (CAS 181696-73-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C16H15NO2 and a molecular weight of 253.29600 g/mol. It is also known as 5-Methyl-3,4-diphenyl-4,5-dihydroisoxazol-5-ol, 5-Methyl-3,4-diphenyl-4,5-dihydro-1,2-oxazol-5-ol and Parecoxib Impurity 12. Key properties include a boiling point of 400.52ºC at 760 mmHg, a density of 1.164g/cm3 and a flash point of 196.028ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
181696-73-1
Jingsj CID
J-1114721-7
Molecular Formula
C16H15NO2
Chinese Name
4,5-二氢-5-甲基-3,4-二苯基-5-异恶唑醇
Molecular Weight
253.29600 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point400.52ºC at 760 mmHg
Density1.164g/cm3
Flash Point196.028ºC

Frequently Asked Questions

What is the CAS number of 4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol?

The CAS number of 4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol is 181696-73-1.

What are the molecular formula and molecular weight of 4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol?

4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol has molecular formula C16H15NO2 and molecular weight 253.29600 g/mol.

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

Last updated:

How to cite: Jingsj. "4,5-Dihydro-5-methyl-3,4-diphenyl-5-isoxazolol (CAS 181696-73-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1114721-7 (accessed 2026-10-22).

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