6528-19-4

Basic information

• Product Name: 2,5-diphenyl-2H-pyrazole-3,4-dione 4-phenylhydrazone
• Synonyms: 2,5-diphenyl-2H-pyrazole-3,4-dione 4-phenylhydrazone
• CAS NO: 6528-19-4
• Molecular Weight: 340.384
• Mol File: 6528-19-4.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 2,5-diphenyl-2H-pyrazole-3,4-dione 4-phenylhydrazone(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-diphenyl-2H-pyrazole-3,4-dione 4-phenylhydrazone(6528-19-4)
• EPA Substance Registry System: 2,5-diphenyl-2H-pyrazole-3,4-dione 4-phenylhydrazone(6528-19-4)

Safety Data

• Hazardous Substances Data: 6528-19-4(Hazardous Substances Data)

Upstream product

• 62-53-3 aniline 
• 4845-49-2 1,3-diphenyl-5-oxo-4,5-dihydro-1H-pyrazole 
• 32803-73-9 methyl 3-phenyl-3-chloro-2-ketopropionate 
• 100-63-0 phenylhydrazine 
• 94-02-0 ethyl 3-oxo-3-phenylpropionate 
• 827-42-9 5-phenyl-3H-1,2-dithiol-3-one 
• 100-34-5 benzene diazonium chloride 
• 14904-52-0 ethyl 2-acetoxy-3-oxo-3-phenylpropanoate 
• 99866-15-6 3-acetoxy-2,2-dihydroxy-3-phenyl-propionic acid 
• 1807-69-8 2-diazo-3-oxo-3-phenyl-propionic acid methyl ester 
• 41381-97-9 ethyl 2-chloro-3-oxo-3-phenylpropionate 
• 3885-45-8 ethyl 2,3-dioxo-3-phenylpropanoate 
• 59106-33-1 (Z)-ethyl 2-bromo-3-phenylprop-2-enoate 

Relevant articles and documents

Reactions of isomeric arylchloropyruvates and glycidates with hydrazines

Reactions of arylchloropyruvic acids esters with aryl- and hetarylhydrazines give rise to pyrazolinedione hydrazones as a result of a tandem condensation of the substituted hydrazines with arylchloropyruvates. In contrast to this process in reaction with hydrazine hydrate a ready reduction unexpectedly occurs by Kizhner-Wolff mechanism affording 3- hydroxydihydrocinnamic acid hydrazide as the principal product. The isomeric arylglycidate reacts along the same pattern. 2005 Pleiades Publishing, Inc.