2H,3H,5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-3-one CAS 118801-67-5

Purity 97%+In StockPharmaceutical Standards
CAS No.118801-67-5
Molecular FormulaC6H9N3O
Molecular Weight139.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2H,3H,5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-3-one CAS 118801-67-5 chemical structure

Description

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.

CATO supplies 2H,3H,5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-3-one (CAS 118801-67-5), a certified reference material (molecular formula C6H9N3O, MW 139.16 g/mol) for analytical method development and quality control.

The molecular framework of 2H,3H,5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-3-one (C6H9N3O) is characterized by an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. 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).

As a certified reference material (CRM), 2H,3H,5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-3-one 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 FormulaC6H9N3O
Molecular Weight139.16 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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms3

Recommended Standards

Why CATO?