5-Methyl-3-(4-phenylphenyl)-1,2-oxazole-4-carboxylic acid CAS 55278-63-2

Purity 97%+In StockPharmaceutical Standards
CAS No.55278-63-2
Molecular FormulaC17H13NO3
Molecular Weight279.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Methyl-3-(4-phenylphenyl)-1,2-oxazole-4-carboxylic acid CAS 55278-63-2 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Methyl-3-(4-phenylphenyl)-1,2-oxazole-4-carboxylic acid.

5-Methyl-3-(4-phenylphenyl)-1,2-oxazole-4-carboxylic acid (CAS 55278-63-2) is a high-purity analytical reference standard with the molecular formula C17H13NO3 and a molecular weight of 279.29 g/mol.

Based on its molecular formula C17H13NO3, 5-Methyl-3-(4-phenylphenyl)-1,2-oxazole-4-carboxylic acid contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 279.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

CATO manufactures 5-Methyl-3-(4-phenylphenyl)-1,2-oxazole-4-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC17H13NO3
Molecular Weight279.29 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1972
Nitrogen Atoms1

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