6-chloro-2H-[1,2,4]triazolo[4,3-b]pyridazin-3-one CAS 33050-32-7

Purity 97%+In StockPharmaceutical Standards
CAS No.33050-32-7
Molecular FormulaC5H9ClN4O
Molecular Weight176.60 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

6-chloro-2H-[1,2,4]triazolo[4,3-b]pyridazin-3-one CAS 33050-32-7 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 6-chloro-2H-[1,2,4]triazolo[4,3-b]pyridazin-3-one.

CATO supplies 6-chloro-2H-[1,2,4]triazolo[4,3-b]pyridazin-3-one (CAS 33050-32-7), a certified reference material (molecular formula C5H9ClN4O, MW 176.60 g/mol) for analytical method development and quality control.

Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 6-chloro-2H-[1,2,4]triazolo[4,3-b]pyridazin-3-one is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 176.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

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 manufactures 6-chloro-2H-[1,2,4]triazolo[4,3-b]pyridazin-3-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC5H9ClN4O
Molecular Weight176.60 g/mol
AppearanceWhite to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1966
Halogen ContentCl-containing
Nitrogen Atoms4

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