Synonyms: 1-Octadecanaminium, N,N-dimethyl-N-octadecyl-, salt with 4-2-3,3-dichloro-4-2-oxo-1-(phenylamino)carbonylpropylazo1,1-biphenyl-4-ylazo-1,3-dioxobutylaminobenzenesulfonic acid (1:1);1-Octadecanaminium, N,N-dimethyl-N-octadecyl-, salt with 4-[[2-[[3,3'-dichloro-4'-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo][1,1'-biphenyl]-4-yl]azo]-1,3-dioxobutyl]amino] benzenesulfonic acid