FD&C Blue No. 1
Brilliant Blue FCF
CI 42090
Class: Triphenylmethane C37H34N2O9S3Na2 Formula wt 792.86
133 [3844-45-9] H3R47K3TBD fd&c blue no. 1
CI 42090
Class: Triphenylmethane C37H34N2O9S3Na2 Formula wt 792.86
133 [3844-45-9] H3R47K3TBD fd&c blue no. 1
DESCRIPTION
FD&C Blue No. 1 is principally the disodium salt of ethyl[4-[p-[ethyl(m-sulfobenzyl)amino]-α-(o-sulfophenyl) benzylidene]-2,5-cyclohexadien-1-ylidene](m-sulfobenzyl)ammonium hydroxide inner salt, with smaller amounts of the isomeric disodium salts of ethyl[4-[p-[ethyl(p-sulfobenzyl)amino]-α-(o-sulfophenyl)benzylidene]-2,5-cyclohexadien-1-ylidene](p-sulfobenzyl)ammonium hydroxide inner salt and ethyl[4-[p-[ethyl(o-sulfobenzyl)amino]-α-(o-sulfophenyl)benzylidene]-2,5-cyclohexadien-1-ylidene](o-sulfobenzyl)ammonium hydroxide inner salt.