16470-44-3 hydrogen 2-(3-(5,6-dichloro-1-ethyl-1,3-dihydro-3-(3-sulphonatobutyl)-2H-benzimidazol-2-ylidene)-1-propenyl)-1-(3-sulphonatopropyl)naphtho[1,2-d]thiazolium, sodium salt
16470-45-4 hydrogen -1-(3-sulphonatopropyl)-2-[2-[[1-(3-sulphonatopropyl)naphtho[1,2-d]thiazol-2(1H)-ylidene]methyl]-1-butenyl]naphtho[1,2-d]thiazolium, sodium salt