Synonyms: 1-Hydroxy-8-benzoylamino-2-[1-sulfo-5-[4-fluoro-6-(3-sulfoanilino)-1,3,5-triazin-2-yl]aminomethyl-2-naphtylazo]-3,5-naphthalenedisulfonic acid tetrasodium salt;8'-Benzoylamino-5-[4-fluoro-6-(m-sodiosulfoanilino)-1,3,5-triazin-2-ylaminomethyl]-1'-hydroxy[2,2'-azobisnaphthalene]-1,3',5'-trisulfonic acid trisodium salt