(4Z)-3-Methyl-4-{[(4-methylphenyl)amino]methylidene}-1-phenyl-4,5-dihydro-1H-pyrazol-5-one CAS 57134-90-4

Purity 97%+In StockPharmaceutical Standards
CAS No.57134-90-4
Molecular FormulaC18H17N3O
Molecular Weight291.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(4Z)-3-Methyl-4-{[(4-methylphenyl)amino]methylidene}-1-phenyl-4,5-dihydro-1H-pyrazol-5-one CAS 57134-90-4 chemical structure

Description

(4Z)-3-Methyl-4-{[(4-methylphenyl)amino]methylidene}-1-phenyl-4,5-dihydro-1H-pyrazol-5-one (CAS 57134-90-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H17N3O. Molecular weight: 291.35 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC18H17N3O
Molecular Weight291.35 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1973
Nitrogen Atoms3

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