4-(4-Fluorophenyl)butyryl Chloride CAS 133188-66-6

Purity 97%+In StockPharmaceutical Standards
CAS No.133188-66-6
Molecular FormulaC10H10ClFO
Molecular Weight200.64 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(4-Fluorophenyl)butyryl Chloride CAS 133188-66-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 200.64 g/mol gives 4-(4-Fluorophenyl)butyryl Chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 4-(4-Fluorophenyl)butyryl Chloride (CAS 133188-66-6), a certified reference material (molecular formula C10H10ClFO, MW 200.64 g/mol) for analytical method development and quality control.

Structurally, 4-(4-Fluorophenyl)butyryl Chloride (C10H10ClFO) contains a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 200.64 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), 4-(4-Fluorophenyl)butyryl Chloride 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 FormulaC10H10ClFO
Molecular Weight200.64 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1995
Halogen ContentF/Cl-containing

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