4-[[2,4-Bis(phenylamino)phenyl]azo][1,1-azobisnaphthalene]-3,6-disulfonic acid disodium salt is a chemical compound registered under CAS number 6505-94-8. It is also known as Anthracite Black B; C.I.26270. KingChemi supplies 4-[[2,4-Bis(phenylamino)phenyl]azo][1,1-azobisnaphthalene]-3,6-disulfonic acid disodium salt for laboratory research and bulk production; product code 1059020. Send an inquiry for purity, packaging, price and lead time.