3-(Methoxycarbonyl)-1,2-oxazole-5-carboxylic acid CAS 145441-18-5

Purity 97%+In StockPharmaceutical Standards
CAS No.145441-18-5
Molecular FormulaC6H5NO5
Molecular Weight171.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(Methoxycarbonyl)-1,2-oxazole-5-carboxylic acid CAS 145441-18-5 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 3-(Methoxycarbonyl)-1,2-oxazole-5-carboxylic acid.

CATO supplies 3-(Methoxycarbonyl)-1,2-oxazole-5-carboxylic acid (CAS 145441-18-5), a certified reference material (molecular formula C6H5NO5, MW 171.11 g/mol) for analytical method development and quality control.

Based on its molecular formula C6H5NO5, 3-(Methoxycarbonyl)-1,2-oxazole-5-carboxylic acid contains a carbohydrate-derived structure, an amide group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 171.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 3-(Methoxycarbonyl)-1,2-oxazole-5-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 FormulaC6H5NO5
Molecular Weight171.11 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1998
Nitrogen Atoms1

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