(3-Methoxy-5-methyl-isoxazol-4-yl)-methanol CAS 75989-21-8

Purity 97%+In StockPharmaceutical Standards
CAS No.75989-21-8
Molecular FormulaC6H9NO3
Molecular Weight143.14 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3-Methoxy-5-methyl-isoxazol-4-yl)-methanol CAS 75989-21-8 chemical structure

Description

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 supplies (3-Methoxy-5-methyl-isoxazol-4-yl)-methanol (CAS 75989-21-8), a certified reference material (molecular formula C6H9NO3, MW 143.14 g/mol) for analytical method development and quality control.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, (3-Methoxy-5-methyl-isoxazol-4-yl)-methanol is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 143.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

As a certified reference material (CRM), (3-Methoxy-5-methyl-isoxazol-4-yl)-methanol 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 FormulaC6H9NO3
Molecular Weight143.14 g/mol
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)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1978
Nitrogen Atoms1

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