5-Methyl-2-(2,3,5,6-tetrafluoro-4-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one CAS 376593-04-3

Purity 97%+In StockPharmaceutical Standards
CAS No.376593-04-3
Molecular FormulaC11H8F4N2O
Molecular Weight260.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Methyl-2-(2,3,5,6-tetrafluoro-4-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one CAS 376593-04-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 260.19 g/mol gives 5-Methyl-2-(2,3,5,6-tetrafluoro-4-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 5-Methyl-2-(2,3,5,6-tetrafluoro-4-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one (CAS 376593-04-3), a certified reference material (molecular formula C11H8F4N2O, MW 260.19 g/mol) for analytical method development and quality control.

Structurally, 5-Methyl-2-(2,3,5,6-tetrafluoro-4-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one (C11H8F4N2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 260.19 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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

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 FormulaC11H8F4N2O
Molecular Weight260.19 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF-containing
Nitrogen Atoms2

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