3-Methyl-1H,2H,3H,4H-pyrido[2,3-b]pyrazine CAS 74983-05-4

Purity 97%+In StockPharmaceutical Standards
CAS No.74983-05-4
Molecular FormulaC8H11N3
Molecular Weight149.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Methyl-1H,2H,3H,4H-pyrido[2,3-b]pyrazine CAS 74983-05-4 chemical structure

Description

The molecular framework of 3-Methyl-1H,2H,3H,4H-pyrido[2,3-b]pyrazine (C8H11N3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

CATO supplies 3-Methyl-1H,2H,3H,4H-pyrido[2,3-b]pyrazine (CAS 74983-05-4), a certified reference material (molecular formula C8H11N3, MW 149.19 g/mol) for analytical method development and quality control.

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), 3-Methyl-1H,2H,3H,4H-pyrido[2,3-b]pyrazine 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 FormulaC8H11N3
Molecular Weight149.19 g/mol
Purity97%+
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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1978
Nitrogen Atoms3

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