L-Leucine, N-(1-oxobutyl)- CAS 55443-78-2

Purity 97%+In StockPharmaceutical Standards
CAS No.55443-78-2
Molecular FormulaC10H19NO3
Molecular Weight201.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

L-Leucine, N-(1-oxobutyl)- CAS 55443-78-2 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.

L-Leucine, N-(1-oxobutyl)- (CAS 55443-78-2) is a high-purity analytical reference standard with the molecular formula C10H19NO3 and a molecular weight of 201.26 g/mol.

The molecular framework of L-Leucine, N-(1-oxobutyl)- (C10H19NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC10H19NO3
Molecular Weight201.26 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1972
Nitrogen Atoms1

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