CI 27190 ACID RED 150 PONCEAU SS 7-naphthalenedisulfonicacid,3-hydroxy-4-[[4-(phenylazo)phenyl]azo]-disodi disodium 3-hydroxy-4-(4-phenylazo)phenylazo)naphthalene-2,7-disulphonate ponceau ss (C.I. 27190) 3-Hydroxy-4-[[4-(phenylazo)phenyl]azo]naphthalene-2,7-disulfonic acid disodium salt C.I.Acid Red 150