3-(4-Chlorophenyl)-5,6-dihydro-4H-pyrrolo[3,2-d]isoxazole CAS 603067-36-3

Purity 97%+In StockPharmaceutical Standards
CAS No.603067-36-3
Molecular FormulaC11H9ClN2O
Molecular Weight220.65 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(4-Chlorophenyl)-5,6-dihydro-4H-pyrrolo[3,2-d]isoxazole CAS 603067-36-3 chemical structure

Description

3-(4-Chlorophenyl)-5,6-dihydro-4H-pyrrolo[3,2-d]isoxazole (CAS 603067-36-3), molecular formula C11H9ClN2O and molecular weight 220.65 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 3-(4-Chlorophenyl)-5,6-dihydro-4H-pyrrolo[3,2-d]isoxazole (C11H9ClN2O) 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 its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

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 FormulaC11H9ClN2O
Molecular Weight220.65 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, 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
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Halogen ContentCl-containing
Nitrogen Atoms2

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