(4-chloro-3-oxo-1-butenyl)triphenylphosphonium chloride 2,4-dinitrophenylhydrazone
<4-(2,4-dinitrophenylhydrazino)-3-oxo-1-butenyl>triphenylphosphonium chloride 2,4-dinitrophenylhydrazone
C40H38N2O4P(1+)*ClH*Cl(1-)
<4-(p-bromoanilino)-3-(p-bromophenylimino)-1-butenyl>triphenylphosphonium chloride
<4-(p-nitrophenylhydrazino)-3-oxo-1-butenyl>triphenylphosphonium chloride p-nitrophenylhydrazone