[1,2,4]Triazolo[4,3-b]pyridazin-6-ol CAS 65148-48-3

Purity 97%+In StockPharmaceutical Standards
CAS No.65148-48-3
Molecular FormulaC5H4N4O
Molecular Weight136.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

[1,2,4]Triazolo[4,3-b]pyridazin-6-ol CAS 65148-48-3 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO supplies [1,2,4]Triazolo[4,3-b]pyridazin-6-ol (CAS 65148-48-3), a certified reference material (molecular formula C5H4N4O, MW 136.11 g/mol) for analytical method development and quality control.

The molecular framework of [1,2,4]Triazolo[4,3-b]pyridazin-6-ol (C5H4N4O) is characterized by an amide group, a hydroxyl group, an ether linkage. 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC5H4N4O
Molecular Weight136.11 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)6.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1975
Nitrogen Atoms4

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