4-(2,4-Difluorophenyl)-1H-1,2,4-triazol-5(4H)-one CAS 155431-40-6

Purity 97%+In StockPharmaceutical Standards
CAS No.155431-40-6
Molecular FormulaC8H5F2N3O
Molecular Weight197.14 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(2,4-Difluorophenyl)-1H-1,2,4-triazol-5(4H)-one CAS 155431-40-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 197.14 g/mol gives 4-(2,4-Difluorophenyl)-1H-1,2,4-triazol-5(4H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(2,4-Difluorophenyl)-1H-1,2,4-triazol-5(4H)-one (CAS 155431-40-6), molecular formula C8H5F2N3O and molecular weight 197.14 g/mol, is a CATO reference standard with documented purity and traceability.

4-(2,4-Difluorophenyl)-1H-1,2,4-triazol-5(4H)-one (C8H5F2N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

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

As a certified reference material (CRM), 4-(2,4-Difluorophenyl)-1H-1,2,4-triazol-5(4H)-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 FormulaC8H5F2N3O
Molecular Weight197.14 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2001
Halogen ContentF-containing
Nitrogen Atoms3

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