1-CYclopentenyl-4-chlorobenzene CAS 2371-98-4

Purity 97%+In StockPharmaceutical Standards
CAS No.2371-98-4
Molecular FormulaC11H11Cl
Molecular Weight178.66 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-CYclopentenyl-4-chlorobenzene CAS 2371-98-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 178.66 g/mol gives 1-CYclopentenyl-4-chlorobenzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-CYclopentenyl-4-chlorobenzene (CAS 2371-98-4) is a high-purity analytical reference standard with the molecular formula C11H11Cl and a molecular weight of 178.66 g/mol.

The molecular framework of 1-CYclopentenyl-4-chlorobenzene (C11H11Cl) is characterized by chlorine substitution, an aromatic ring system. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

As a certified reference material (CRM), 1-CYclopentenyl-4-chlorobenzene 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 FormulaC11H11Cl
Molecular Weight178.66 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentCl-containing

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