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-(2-(4-(4-chlorophenoxy)phenyl)diazenyl)-3-cyano-6-hydroxy-N,N,N,4-tetramethyl-2-oxo-,chloride (1:1), (5-((4-(4-Chlorophenoxy)phenyl)azo)-3-cyano-6-hydroxy-4-methyl-2-oxo-(2H)-pyridine-1-propyl)(trimethyl)ammonium chloride, EINECS 276-128-8,