Syonyms Name: C.I. 25380; C.I. Direct Red 75 (VAN); C.I. Direct Red 75, tetrasodium salt (8CI); Direct Red 75; (6E)-6-imino-5-[2-(4-{[(4-{2-[(2E)-2-imino-8-oxo-6-sulfo-2,8-dihydronaphthalen-1-yl]hydrazino}-3-sulfophenyl)carbamoyl]amino}-2-sulfophenyl)hydrazino]-4-oxo-4