4-(Chloromethyl)-5-(difluoromethyl)oxazole CAS 2006920-94-9

Purity 97%+In StockPharmaceutical Standards
CAS No.2006920-94-9
Molecular FormulaC5H4ClF2NO
Molecular Weight167.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(Chloromethyl)-5-(difluoromethyl)oxazole CAS 2006920-94-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 167.54 g/mol gives 4-(Chloromethyl)-5-(difluoromethyl)oxazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 4-(Chloromethyl)-5-(difluoromethyl)oxazole (CAS 2006920-94-9), a certified reference material (molecular formula C5H4ClF2NO, MW 167.54 g/mol) for analytical method development and quality control.

The molecular framework of 4-(Chloromethyl)-5-(difluoromethyl)oxazole (C5H4ClF2NO) is characterized by an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

As a certified reference material (CRM), 4-(Chloromethyl)-5-(difluoromethyl)oxazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC5H4ClF2NO
Molecular Weight167.54 g/mol
AppearanceWhite to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1996
Halogen ContentF/Cl-containing
Nitrogen Atoms1

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