Se-(Methyl)seleno-L-cysteine CAS 26046-90-2

Purity >95%In StockPharmaceutical Standards
CAS No.26046-90-2
Molecular FormulaC4H9NO2Se
Molecular Weight182.08 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Se-(Methyl)seleno-L-cysteine CAS 26046-90-2 chemical structure

Description

As a certified reference material (CRM), Se-(Methyl)seleno-L-cysteine 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.

Se-(Methyl)seleno-L-cysteine (CAS 26046-90-2) is a high-purity analytical reference standard with the molecular formula C4H9NO2Se and a molecular weight of 182.08 g/mol.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Se-(Methyl)seleno-L-cysteine is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 182.08 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.

Physical & Chemical Properties

Molecular FormulaC4H9NO2Se
Molecular Weight182.08 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.)1964
Nitrogen Atoms1

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