1(2H)-Pyridinepropanaminium,5-[[4-(4-chlorophenoxy)phenyl]azo]-3-cyano-6-hydroxy-N,N,N,4-tetramethyl-2-oxo-,chloride

1(2H)-Pyridinepropanaminium, 5-[[4-(4-chlorophenoxy)phenyl]azo]-3-cyano-6-hydroxy-N,N,N,4-tetramethyl-2-oxo-, chloride

[5-[[4-(4-chlorophenoxy)phenyl]azo]-3-cyano-6-hydroxy-4-methyl-2-oxo-(2H)-pyridine-1-propyl](trimethyl)ammonium chloride