2,5-Difluoro-1,4-Benzenediboronic Acid Bis(pinacol) Ester CAS 303006-90-8

Purity 97%+In StockPharmaceutical Standards
CAS No.303006-90-8
Molecular FormulaC18H26B2F2O4
Molecular Weight366.02 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,5-Difluoro-1,4-Benzenediboronic Acid Bis(pinacol) Ester CAS 303006-90-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 366.02 g/mol gives 2,5-Difluoro-1,4-Benzenediboronic Acid Bis(pinacol) Ester distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2,5-Difluoro-1,4-Benzenediboronic Acid Bis(pinacol) Ester (CAS 303006-90-8) is a high-purity analytical reference standard with the molecular formula C18H26B2F2O4 and a molecular weight of 366.02 g/mol.

Based on its molecular formula C18H26B2F2O4, 2,5-Difluoro-1,4-Benzenediboronic Acid Bis(pinacol) Ester contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 366.02 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), 2,5-Difluoro-1,4-Benzenediboronic Acid Bis(pinacol) Ester 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 FormulaC18H26B2F2O4
Molecular Weight366.02 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF-containing

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