Diethyl [hydroxy(phenyl)methyl]phosphonate CAS 1663-55-4

Purity 97%+In StockPharmaceutical Standards
CAS No.1663-55-4
Molecular FormulaC11H17O4P
Molecular Weight244.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Diethyl [hydroxy(phenyl)methyl]phosphonate CAS 1663-55-4 chemical structure

Description

The occurrence of Diethyl [hydroxy(phenyl)methyl]phosphonate is closely related to a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Diethyl [hydroxy(phenyl)methyl]phosphonate (CAS 1663-55-4) is a high-purity analytical reference standard with the molecular formula C11H17O4P and a molecular weight of 244.22 g/mol.

Structurally, Diethyl [hydroxy(phenyl)methyl]phosphonate (C11H17O4P) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 244.22 g/mol, it falls into the medium-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.

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), Diethyl [hydroxy(phenyl)methyl]phosphonate 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 FormulaC11H17O4P
Molecular Weight244.22 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957

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