L-α-Glutamyl-L-cysteinylglycine Glutathione CAS 119290-90-3

Purity 97%+In StockPharmaceutical Standards
CAS No.119290-90-3
Molecular FormulaC20H32N6O12S2
Molecular Weight612.63 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

L-α-Glutamyl-L-cysteinylglycine Glutathione CAS 119290-90-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 612.63 g/mol gives L-α-Glutamyl-L-cysteinylglycine Glutathione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

L-α-Glutamyl-L-cysteinylglycine Glutathione (CAS 119290-90-3) is a high-purity analytical reference standard with the molecular formula C20H32N6O12S2 and a molecular weight of 612.63 g/mol.

Based on its molecular formula C20H32N6O12S2, L-α-Glutamyl-L-cysteinylglycine Glutathione contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 612.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

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 FormulaC20H32N6O12S2
Molecular Weight612.63 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms6
Sulfur Atoms2

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