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Bobo192 ∙
A benzenesulfonate is any salt or ester of benenesulfonic acid.
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Organic. The IUPAC name for brilliant blue FCF is Disodium 2-[(E)-{4-[ethyl(3-sulfonatobenzyl)amino]phenyl}{(4E)-4-[ethyl(3-sulfonatobenzyl)iminio]-2,5-cyclohexadien-1-ylidene}methyl]benzenesulfonate