4-(2-Chlorophenoxy)-3-methylisoxazolo[5,4-d]pyrimidine CAS 672925-28-9

Purity 97%+In StockPharmaceutical Standards
CAS No.672925-28-9
Molecular FormulaC12H8ClN3O2
Molecular Weight261.66 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(2-Chlorophenoxy)-3-methylisoxazolo[5,4-d]pyrimidine CAS 672925-28-9 chemical structure

Description

The occurrence of 4-(2-Chlorophenoxy)-3-methylisoxazolo[5,4-d]pyrimidine is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 4-(2-Chlorophenoxy)-3-methylisoxazolo[5,4-d]pyrimidine (CAS 672925-28-9), a certified reference material (molecular formula C12H8ClN3O2, MW 261.66 g/mol) for analytical method development and quality control.

The molecular framework of 4-(2-Chlorophenoxy)-3-methylisoxazolo[5,4-d]pyrimidine (C12H8ClN3O2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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-(2-Chlorophenoxy)-3-methylisoxazolo[5,4-d]pyrimidine 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 FormulaC12H8ClN3O2
Molecular Weight261.66 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Halogen ContentCl-containing
Nitrogen Atoms3

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