2-Chloro-5-(chloromethyl)-4-methyloxazole CAS 1260666-99-6

Purity 97%+In StockPharmaceutical Standards
CAS No.1260666-99-6
Molecular FormulaC5H5Cl2NO
Molecular Weight166.01 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Chloro-5-(chloromethyl)-4-methyloxazole CAS 1260666-99-6 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 2-Chloro-5-(chloromethyl)-4-methyloxazole.

2-Chloro-5-(chloromethyl)-4-methyloxazole (CAS 1260666-99-6), molecular formula C5H5Cl2NO and molecular weight 166.01 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 2-Chloro-5-(chloromethyl)-4-methyloxazole (C5H5Cl2NO) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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 166.01 g/mol, it falls into the medium-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.

As a certified reference material (CRM), 2-Chloro-5-(chloromethyl)-4-methyloxazole 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 FormulaC5H5Cl2NO
Molecular Weight166.01 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.)1990
Halogen ContentCl-containing
Nitrogen Atoms1

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