Synonyms: 1-Naphthol-3,6-disulfonicacid, 8-acetamido-2-(p-dodecylphenylazo)-, disodium salt (6CI);2,7-Naphthalenedisulfonic acid,5-(acetylamino)-3-[(4-dodecylphenyl)azo]-4-hydroxy-, disodium salt (9CI);C.I.Acid Red 138, disodium salt (8CI);Acid Pink B;Apollo Nylon FastBrilliant Red M-BW;Best Acid Milling Red BW;C.I. 18073;C.I. Acid Red 138;Carbolan Crimson B;Covalene Red 4B;Covanyl Red 4B;Dycosweak Acid Pink B;Kayanol Milling Red BW;Milling Red 6B;Napthazine Red 4B;Nylomine Acid Red C2B;Nylomine Acid Red P 2B;Suminol Milling Brilliant Red BS;Triacid FastMilling Red B;ACID RED 138;