(3,4-Bis(benzyloxy)phenyl)boronic acid CAS 906665-98-3

Purity 97%+In StockPharmaceutical Standards
CAS No.906665-98-3
Molecular FormulaC20H19BO4
Molecular Weight334.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3,4-Bis(benzyloxy)phenyl)boronic acid CAS 906665-98-3 chemical structure

Description

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.

(3,4-Bis(benzyloxy)phenyl)boronic acid (CAS 906665-98-3) is a high-purity analytical reference standard with the molecular formula C20H19BO4 and a molecular weight of 334.17 g/mol.

Structurally, (3,4-Bis(benzyloxy)phenyl)boronic acid (C20H19BO4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.5, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 334.17 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

Physical & Chemical Properties

Molecular FormulaC20H19BO4
Molecular Weight334.17 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987

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