(2s)-3-Methyl-2-{[(propan-2-yloxy)carbonyl]amino}butanoic acid CAS 140923-27-9

Purity 97%+In StockPharmaceutical Standards
CAS No.140923-27-9
Molecular FormulaC9H17NO4
Molecular Weight203.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2s)-3-Methyl-2-{[(propan-2-yloxy)carbonyl]amino}butanoic acid CAS 140923-27-9 chemical structure

Description

CATO supplies (2s)-3-Methyl-2-{[(propan-2-yloxy)carbonyl]amino}butanoic acid (CAS 140923-27-9), a certified reference material (molecular formula C9H17NO4, MW 203.24 g/mol) for analytical method development and quality control.

(2s)-3-Methyl-2-{[(propan-2-yloxy)carbonyl]amino}butanoic acid (C9H17NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

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 FormulaC9H17NO4
Molecular Weight203.24 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.)1997
Nitrogen Atoms1

Recommended Standards

Why CATO?