Ethyl (2-oxoheptyl) ethylphosphonate CAS 3450-65-5

Purity 97%+In StockPharmaceutical Standards
CAS No.3450-65-5
Molecular FormulaC11H23O4P
Molecular Weight250.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl (2-oxoheptyl) ethylphosphonate CAS 3450-65-5 chemical structure

Description

Ethyl (2-oxoheptyl) ethylphosphonate (C11H23O4P) contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Ethyl (2-oxoheptyl) ethylphosphonate (CAS 3450-65-5), molecular formula C11H23O4P and molecular weight 250.27 g/mol, is a CATO reference standard with documented purity and traceability.

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.

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.

Physical & Chemical Properties

Molecular FormulaC11H23O4P
Molecular Weight250.27 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)0.5
CAS Registry Year (est.)1957

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