4-(Chloromethyl)-3-methoxy-5-methylisoxazole CAS 75989-22-9

Purity 97%+In StockPharmaceutical Standards
CAS No.75989-22-9
Molecular FormulaC6H8ClNO2
Molecular Weight161.59 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(Chloromethyl)-3-methoxy-5-methylisoxazole CAS 75989-22-9 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 4-(Chloromethyl)-3-methoxy-5-methylisoxazole.

CATO supplies 4-(Chloromethyl)-3-methoxy-5-methylisoxazole (CAS 75989-22-9), a certified reference material (molecular formula C6H8ClNO2, MW 161.59 g/mol) for analytical method development and quality control.

4-(Chloromethyl)-3-methoxy-5-methylisoxazole (C6H8ClNO2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC6H8ClNO2
Molecular Weight161.59 g/mol
AppearanceWhite to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1978
Halogen ContentCl-containing
Nitrogen Atoms1

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