99365-96-5

Basic information

• Product Name: 4-[1-(4-Dimethylamino-phenyl)-meth-(Z)-ylidene]-5-ethoxy-2-phenyl-2,4-dihydro-pyrazol-3-one
• Synonyms: 4-[1-(4-Dimethylamino-phenyl)-meth-(Z)-ylidene]-5-ethoxy-2-phenyl-2,4-dihydro-pyrazol-3-one
• CAS NO: 99365-96-5
• Molecular Weight: 335.406
• Mol File: 99365-96-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4-[1-(4-Dimethylamino-phenyl)-meth-(Z)-ylidene]-5-ethoxy-2-phenyl-2,4-dihydro-pyrazol-3-one(CAS DataBase Reference)
• NIST Chemistry Reference: 4-[1-(4-Dimethylamino-phenyl)-meth-(Z)-ylidene]-5-ethoxy-2-phenyl-2,4-dihydro-pyrazol-3-one(99365-96-5)
• EPA Substance Registry System: 4-[1-(4-Dimethylamino-phenyl)-meth-(Z)-ylidene]-5-ethoxy-2-phenyl-2,4-dihydro-pyrazol-3-one(99365-96-5)

Safety Data

• Hazardous Substances Data: 99365-96-5(Hazardous Substances Data)

Upstream product

• 100-10-7 4-dimethylamino-benzaldehyde 
• 16105-49-0 3-ethoxy-1-phenyl-4,5-dihydro-1H-pyrazol-5-one 

Downstream Products

• 100-10-7 4-dimethylamino-benzaldehyde 
• 16105-49-0 3-ethoxy-1-phenyl-4,5-dihydro-1H-pyrazol-5-one 

Relevant articles and documents

Investigations on the Hydrolytic Stability of 4-Arylmethylidene-2-pyrazolin-5-ones

The 4-Arylmethylidene-2-pyrazoline-5-ones S are not stable under aqueous alkaline conditions.By the substitution of R3 with electron donor substituents S reacts preferably yielding aldehyde A and 2-pyrazoline-5-one P, while with electron acceptor substituents S forms 4,4'-arylmethylidene-bis-2-pyrazoline-5-one B.The intermediate of hydrolysis is 4-(arylhydroxymethyl)-2-pyrazoline-5-one SOH.The second order rate constants of the reactions of S with hydroxidions and with 2-pyrazoline-5-ones P(-) are determined.The dependence of the hydrolytic decomposition of S on the pH value, substituents and temperature is suitable for the intermediate formation of SOH.