N-[4-[[4-[(Potassiosulfo)methyl]-3-(sulfonatomethyl)phenyl][4-(diethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethylethanaminium [4-[[4-(diethylamino)phenyl]-(4-diethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]-2-(sulfonatomethyl)phenyl]methanesulfonate Ethanaminium,N-[4-[[3,4-bis(sulfomethyl)phenyl][4-(diethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-,inner salt, potassium salt (1:1) 28 ACID GREEN 28 Hydrogen[4-[-(diethylamino)-3′,4′-bis(sulfonatomethyl)benzhydryliden]cyclohexa-2,5-dien-1-yliden]diethylammonium, Kaliumsalz Hydrogen[4-[-(diethylamino)-3',4'-bis (sulfonatomethyl)benzhydrylidene] cyclohexa-2,5-diene-1-ylidene] diethylammonium, potassium salt Hydrogen[4-[-(diethylamino)-3',4'-bis(sulfonatomethyl)benzhydrylidene] cyclohexa-2,5-diene-1-ylidene] diethylammonium,potassium salt 25 ACID GREEN 25