C.I. 42080; C.I. Acid Blue 7; C.I. Acid Blue 7, sodium salt; C.I. Acid Blue 7 (7CI); C.I. Acid Blue 7, sodium salt (8CI); Acid blue 7; Acid Blue 7; Patent Blue A; Acid Blue 7 (42080); sodium 4-[(E)-{4-[benzyl(ethyl)amino]phenyl}{(4E)-4-[benzyl(ethyl)iminio]cyclohexa-2,5-dien-1-ylidene}methyl]benzene-1,3-disulfonate