[Not Available].
The electrochemical behaviour of some pyrazolone derivatives has been studied in aqueous and ethanolic media. beta-Diketone compounds with a labile hydrogen atom on carbon atom 4 are directly reducible in neutral ethanol; phenazone derivatives have to be diazotized. Pulse polarography is suggested for determination of these derivatives in pharmaceutical preparations.
Pelinard
C
C
Laboratoire do chimie analytique, Centre d'études pharmaceutiques, Université de Paris-Sud, rue J. B. Clément, 92290-Chatenay-Malabry, France.
Nivaud
E
E
Boucly
P
P