L-Isoleucine CAS 73-32-5

Purity >95%In StockPharmaceutical Standards
CAS No.73-32-5
Molecular FormulaC6H13NO2
Molecular Weight131.17 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

L-Isoleucine CAS 73-32-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 131.17 g/mol gives L-Isoleucine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies L-Isoleucine (CAS 73-32-5), a certified reference material (molecular formula C6H13NO2, MW 131.17 g/mol) for analytical method development and quality control.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, L-Isoleucine is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 131.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

As a certified reference material (CRM), L-Isoleucine meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC6H13NO2
Molecular Weight131.17 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1957
Nitrogen Atoms1

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