5-Nitropyrazin-2-amine CAS 244261-31-2

Purity 97%+In StockPharmaceutical Standards
CAS No.244261-31-2
Molecular FormulaC4H4N4O2
Molecular Weight140.10 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Nitropyrazin-2-amine CAS 244261-31-2 chemical structure

Description

5-Nitropyrazin-2-amine (CAS 244261-31-2), molecular formula C4H4N4O2 and molecular weight 140.10 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 5-Nitropyrazin-2-amine (C4H4N4O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 140.10 g/mol, it falls into the low-molecular-weight range. 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 FormulaC4H4N4O2
Molecular Weight140.10 g/mol
Purity97%+
StorageStore at 2-8°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)5.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)2025
Nitrogen Atoms4

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Why CATO?