C.I. 14780; C.I. Direct Red 45 (VAN); C.I. Food Red 13; C.I. Direct Red 45, disodium salt (8CI); Thiazine red; 6-methyl-2-{4-[(2E)-2-(1-oxo-4-sulfonaphthalen-2(1H)-ylidene)hydrazino]phenyl}-1,3-benzothiazole-7-sulfonic acid; disodium 6-methyl-2-{4-[(2Z)-2-(1-oxo-4-sulfonatonaphthalen-2(1H)-ylidene)hydrazino]phenyl}-1,3-benzothiazole-7-sulfonate