3-(3-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-thiol CAS 872696-22-5

Purity 97%+In StockPharmaceutical Standards
CAS No.872696-22-5
Molecular FormulaC11H21FN4S
Molecular Weight260.37 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(3-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-thiol CAS 872696-22-5 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 3-(3-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-thiol.

3-(3-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-thiol (CAS 872696-22-5), molecular formula C11H21FN4S and molecular weight 260.37 g/mol, is a CATO reference standard with documented purity and traceability.

3-(3-fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-thiol (C11H21FN4S) contains a nitrile group, sulfur-containing functionality, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC11H21FN4S
Molecular Weight260.37 g/mol
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.)1987
Halogen ContentF-containing
Nitrogen Atoms4
Sulfur Atoms1

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