2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((4-(phenylazo)phenyl)azo)-, disodium salt 6226-78-4 C.I. 27190 C.I. Acid Red 150 C.I. Acid Red 150, disodium salt (8CI) Cloth Red 2R Disodium 3-hydroxy-4-((4-(phenylazo)phenyl)azo)naphthalene-2,7-disulphonate EINECS 228-318-7 Hispacid Cloth Red 2R NSC 58049 No. 6 Scarlet