Oblon, Fisher, Spivak, McClelland & Maier
Phenylhydrazones
 Phenylhydrazones of the formula ##STR1## where R.sup.1 is C.sub.1 -C.sub.4 -alkyl or phenyl-C.sub.1 -C.sub.4 -alkyl, or is phenyl which is unsubstituted or substituted by alkyl, alkoxy or halogen, or is a radical ##STR2## R.sup.2 is alkyl or is phenyl which is unsubstituted or substituted by alkyl, alkoxy or halogen, and R.sup.4 and R.sup.5 independently of one another are each H, alkyl, alkoxy or halogen, are very useful as charge carrier-transporting compounds for electrophotographic recording materials. 
BASF Aktiengesellschaft
G C
G03G C07C
inventional inventional
Gerhard Karl-Heinz Heinz Peter
Hoffmann Etzbach Eilingsfeld Neumann