(4Z)-4-{2-[2-(trifluoromethyl)phenyl]hydrazin-1-ylidene}-4,5-dihydro-1H-pyrazol-5-one CAS 338416-87-8

Purity 97%+In StockPharmaceutical Standards
CAS No.338416-87-8
Molecular FormulaC10H7F3N4O
Molecular Weight256.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4Z)-4-{2-[2-(trifluoromethyl)phenyl]hydrazin-1-ylidene}-4,5-dihydro-1H-pyrazol-5-one CAS 338416-87-8 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 (4Z)-4-{2-[2-(trifluoromethyl)phenyl]hydrazin-1-ylidene}-4,5-dihydro-1H-pyrazol-5-one.

CATO supplies (4Z)-4-{2-[2-(trifluoromethyl)phenyl]hydrazin-1-ylidene}-4,5-dihydro-1H-pyrazol-5-one (CAS 338416-87-8), a certified reference material (molecular formula C10H7F3N4O, MW 256.18 g/mol) for analytical method development and quality control.

Structurally, (4Z)-4-{2-[2-(trifluoromethyl)phenyl]hydrazin-1-ylidene}-4,5-dihydro-1H-pyrazol-5-one (C10H7F3N4O) 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 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 256.18 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.

As a certified reference material (CRM), (4Z)-4-{2-[2-(trifluoromethyl)phenyl]hydrazin-1-ylidene}-4,5-dihydro-1H-pyrazol-5-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 FormulaC10H7F3N4O
Molecular Weight256.18 g/mol
AppearancePale yellow to 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentF-containing
Nitrogen Atoms4

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