4-(4-(3-Chlorophenyl)piperazin-1-yl)-3-methylisoxazolo[5,4-d]pyrimidine CAS 478062-84-9

Purity 97%+In StockPharmaceutical Standards
CAS No.478062-84-9
Molecular FormulaC16H16ClN5O
Molecular Weight329.78 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(4-(3-Chlorophenyl)piperazin-1-yl)-3-methylisoxazolo[5,4-d]pyrimidine CAS 478062-84-9 chemical structure

Description

The molecular framework of 4-(4-(3-Chlorophenyl)piperazin-1-yl)-3-methylisoxazolo[5,4-d]pyrimidine (C16H16ClN5O) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

4-(4-(3-Chlorophenyl)piperazin-1-yl)-3-methylisoxazolo[5,4-d]pyrimidine (CAS 478062-84-9), molecular formula C16H16ClN5O and molecular weight 329.78 g/mol, is a CATO reference standard with documented purity and traceability.

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-(4-(3-Chlorophenyl)piperazin-1-yl)-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 FormulaC16H16ClN5O
Molecular Weight329.78 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms5

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