4-Hydroxybenzoic Acid-N-Butyl Ester CAS 94-26-8

Purity >95%In StockPharmaceutical Standards
CAS No.94-26-8
Molecular FormulaC11H14O3
Molecular Weight194.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Hydroxybenzoic Acid-N-Butyl Ester CAS 94-26-8 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.

CATO supplies 4-Hydroxybenzoic Acid-N-Butyl Ester (CAS 94-26-8), a certified reference material (molecular formula C11H14O3, MW 194.23 g/mol) for analytical method development and quality control.

The molecular framework of 4-Hydroxybenzoic Acid-N-Butyl Ester (C11H14O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 FormulaC11H14O3
Molecular Weight194.23 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity>95%
StorageStore at 2-8°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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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