(R)-4-(tert-Butoxy)-2-(4-methoxyphenyl)-4-oxobutanoic acid CAS 873326-20-6

Purity 97%+In StockPharmaceutical Standards
CAS No.873326-20-6
Molecular FormulaC15H20O5
Molecular Weight280.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(R)-4-(tert-Butoxy)-2-(4-methoxyphenyl)-4-oxobutanoic acid CAS 873326-20-6 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.

(R)-4-(tert-Butoxy)-2-(4-methoxyphenyl)-4-oxobutanoic acid (CAS 873326-20-6) is a high-purity analytical reference standard with the molecular formula C15H20O5 and a molecular weight of 280.32 g/mol.

(R)-4-(tert-Butoxy)-2-(4-methoxyphenyl)-4-oxobutanoic acid (C15H20O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

Physical & Chemical Properties

Molecular FormulaC15H20O5
Molecular Weight280.32 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987

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