2-Oxohistidine CAS 265997-48-6

Purity 97%+In StockPharmaceutical Standards
CAS No.265997-48-6
Molecular FormulaH4N2
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Oxohistidine CAS 265997-48-6 chemical structure

Description

The occurrence of 2-Oxohistidine is closely related to an inorganic composition in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-Oxohistidine (CAS 265997-48-6) is a high-purity analytical reference standard with the molecular formula H4N2H2O and a molecular weight of 50.06 g/mol.

The molecular framework of 2-Oxohistidine (H4N2H2O) is characterized by an inorganic composition. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), 2-Oxohistidine 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 FormulaH4N2 H2O
Molecular Weight50.06 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Freely soluble in water
StabilityLight-sensitive; avoid direct strong light
CAS Registry Year (est.)2025
Nitrogen Atoms2

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