Undecylphosphonic acid CAS 5137-69-9

Purity 97%+In StockPharmaceutical Standards
CAS No.5137-69-9
Molecular FormulaC11H25O3P
Molecular Weight236.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Undecylphosphonic acid CAS 5137-69-9 chemical structure

Description

Owing to a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, Undecylphosphonic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 236.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Undecylphosphonic acid (CAS 5137-69-9) is a high-purity analytical reference standard with the molecular formula C11H25O3P and a molecular weight of 236.29 g/mol.

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.

CATO manufactures Undecylphosphonic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC11H25O3P
Molecular Weight236.29 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.)1958

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