Synonyms: 2-[2-(2,7-bis{[3-(dibutylamino)propoxy]carbonyl}-9h-fluoren-9-ylidene)hydrazinyl]-n,n,n-trimethyl-2-oxoethanaminium chloride hydrochloride(1:1:2);AC1L55WD;AC1Q1S0Y;AR-1D6491;LS-65098;[2-[2-[2,7-bis[3-(dibutylamino)propoxycarbonyl]fluoren-9-ylidene]hydrazinyl]-2-oxoethyl]-trimethylazanium chloride dihydrochloride;2-[2-(2,7-bis{[3-(dibutylamino)propoxy]carbonyl}-9H-fluoren-9-ylidene)hydrazinyl]-N,N,N-trimethyl-2-oxoethanaminium chloride hydrochloride (1:1:2);Ethanaminium, 2-((2,7-bis((3-(dibutylamino)propoxy)carbonyl)-9H-fluoren-9-ylidene)hydrazino)-N,N,N-trimethyl-2-oxo-, chloride, hydrochloride, hydrate (4:8:3)