119350-27-5

Basic information

• Product Name: 4-phenyl-1,2-diethyl-3⁽⁵⁾-oxo-5⁽³⁾-hydroxy-3H(5H)-pyrazole
• CAS NO: 119350-27-5
• Molecular Weight: 232.282
• Mol File: 119350-27-5.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 4-phenyl-1,2-diethyl-3⁽⁵⁾-oxo-5⁽³⁾-hydroxy-3H(5H)-pyrazole(CAS DataBase Reference)
• NIST Chemistry Reference: 4-phenyl-1,2-diethyl-3⁽⁵⁾-oxo-5⁽³⁾-hydroxy-3H(5H)-pyrazole(119350-27-5)
• EPA Substance Registry System: 4-phenyl-1,2-diethyl-3⁽⁵⁾-oxo-5⁽³⁾-hydroxy-3H(5H)-pyrazole(119350-27-5)

Safety Data

• Hazardous Substances Data: 119350-27-5(Hazardous Substances Data)

Upstream product

• 64-67-5 diethyl sulfate 
• 106367-54-8 3,5-dihydroxy-4-phenylpyrazole 

Relevant articles and documents

Crystal Structure, Dissociation and Zwitterion Formation in 2,6-Diaryl-1(3)-oxo-3(1)-hydroxy-5(7)-imino-7(5)-amino-1H,5H(3H,7H)-pyrazolopyrazoles

Single crystal X-ray analysis and quaternization of 2,6-diphenyl-1(3)-oxo-3(1)-hydroxy-5(7)-imino-7(5)-1H,5H(3H,7H)-pyrazolopyrazole is described.The dissociation constants are determined and compared with those of 4-phenyl-1,2-dimethyl-3(5)-oxo-5(3)-hydroxypyrazole and 4-phenyl-3,5-diaminopyrazole.The quaternization of the latter compound is also described.The influence of electron donating substituents at the cationic moiety on the electronic spectra of such paraionic systems is discussed.The title products exist in the solid state as zwitterions and probably as covalent species in solution.