Synonyms: [2-[[4-[(2-cyano-4-nitrophenyl)azo]phenyl]ethylamino]ethyl]trimethylammonium methyl sulphate;Ethanaminium, 2-4-(2-cyano-4-nitrophenyl)azophenylethylamino-N,N,N-trimethyl-, methyl sulfate;ethanaminium, 2-[[4-[(2-cyano-4-nitrophenyl)azo]phenyl]ethylamino]-n,n,n-trimet;Basic red 24 (C.I. 11088);C.I. Basic Red 24;Astrazon Red 5BL;Cationic Red 5BL;Viocryl Red 5GL.