4,4'-bis[[2-Hydroxy-3-[(phenylamino)carbonyl]-1-naphthyl]azo][1,1'-biphenyl]-2,2'-disulfonic disodium acid

C.I. AcidRed 144, disodium salt (8CI) ; [1,1'-Biphenyl]-2,2'-disulfonic acid,4,4'-bis[[2-hydroxy-3-[(phenylamino)carbonyl]-1-naphthalenyl]azo]-, disodiumsalt (9CI) ; Acid Red 144 ; C.I. 22900 ; C.I. Acid Red 144 ; Milling Red MB ; [1,1'-Biphenyl]-2,2'-disulfonicacid,4,4'-bis[2-[2-hydroxy-3-[(phenylamino)carbonyl]-1-naphthalenyl]diazenyl]-,sodium salt (1:2)