3,6-Diaminopyrazine-2,5-dicarbonitrile CAS 133940-72-4

Purity >95%In StockPharmaceutical Standards
CAS No.133940-72-4
Molecular FormulaC6H4N6
Molecular Weight160.14 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,6-Diaminopyrazine-2,5-dicarbonitrile CAS 133940-72-4 chemical structure

Description

3,6-Diaminopyrazine-2,5-dicarbonitrile (CAS 133940-72-4), molecular formula C6H4N6 and molecular weight 160.14 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C6H4N6, 3,6-Diaminopyrazine-2,5-dicarbonitrile contains a nitrile group, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 160.14 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 FormulaC6H4N6
Molecular Weight160.14 g/mol
AppearancePale yellow to yellow crystalline powder. (faint amine-like odor)
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1995
Nitrogen Atoms6

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