hydrogen [4-[(2-chlorophenyl)[4-[ethyl(3-sulphonatobenzyl)amino]phenyl]methylene]cyclohexa-2,5-dien-1-ylidene](ethyl)(3-sulphonatobenzyl)ammonium, sodium salt
C.I. 42100; C.I. Acid Green 9; C.I. Acid Green 9, sodium salt; C.I. Acid Green 9, monosodium salt (8CI); Acid green 9; N-{(1E,4E)-4-[(2-chlorophenyl){4-[ethyl(3-sulfobenzyl)amino]phenyl}methylidene]cyclohexa-2,5-dien-1-ylidene}-N-(3-sulfobenzyl)ethanaminium; sodium 3-[[4-[(2-chlorophenyl)-[4-[ethyl-[(3-sulfonatophenyl)methyl]iminio]cyclohexa-2,5-dien-1-ylidene]methyl]-N-ethyl-anilino]methyl]benzenesulfonate