(3-Methylbuta-1,2-dien-1-yl)(phenyl)phosphinic acid CAS 1833-29-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1833-29-0
Molecular FormulaC11H13O2P
Molecular Weight208.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3-Methylbuta-1,2-dien-1-yl)(phenyl)phosphinic acid CAS 1833-29-0 chemical structure

Description

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.

(3-Methylbuta-1,2-dien-1-yl)(phenyl)phosphinic acid (CAS 1833-29-0) is a high-purity analytical reference standard with the molecular formula C11H13O2P and a molecular weight of 208.19 g/mol.

(3-Methylbuta-1,2-dien-1-yl)(phenyl)phosphinic acid (C11H13O2P) contains organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC11H13O2P
Molecular Weight208.19 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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