SMILES: CCN(CC1=CC(=CC=C1)S(=O)(=O)[O-])C2=CC=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)[O-])C=C3)C5=CC=C(C=C5)S(=O)(=O)[O-]
Description: The molecule is an organosulfonate oxoanion obtained by the removal of two protons from N-ethyl-4-[(4-{ethyl[(3-sulfophenyl)methyl]amino}phenyl)(4-sulfophenyl)methylidene]-N-[(3-sulfophenyl)methyl]cyclohexa-2,5-dien-1-iminium (the free acid form of the biological stain 'acid green 5'). It is a conjugate base of an acid green 5(1+).