4-Cyclopentenylphenylboronic acid CAS 1217501-39-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1217501-39-7
Molecular FormulaC11H13BO2
Molecular Weight188.03 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Cyclopentenylphenylboronic acid CAS 1217501-39-7 chemical structure

Description

4-Cyclopentenylphenylboronic acid (CAS 1217501-39-7), molecular formula C11H13BO2 and molecular weight 188.03 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H13BO2, 4-Cyclopentenylphenylboronic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 188.03 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 4-Cyclopentenylphenylboronic acid 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 FormulaC11H13BO2
Molecular Weight188.03 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990

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