4,5-Dimethyloxazole CAS 20662-83-3

Purity 97%+In StockPharmaceutical Standards
CAS No.20662-83-3
Molecular FormulaC5H7NO
Molecular Weight97.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,5-Dimethyloxazole CAS 20662-83-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 97.12 g/mol gives 4,5-Dimethyloxazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4,5-Dimethyloxazole (CAS 20662-83-3), molecular formula C5H7NO and molecular weight 97.12 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4,5-Dimethyloxazole (C5H7NO) contains an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 97.12 g/mol, it falls into the low-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 4,5-Dimethyloxazole 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 FormulaC5H7NO
Molecular Weight97.12 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1962
Nitrogen Atoms1

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