4-Amino-4-[(3-sodiosulfophenyl)azo][1,1-azobisnaphthalene]-7-sulfonic acid sodium salt is a chemical compound registered under CAS number 6527-59-9. It is also known as C.I.26305; Naphthalene Acid Black 4B. ReagentForLab supplies 4-Amino-4-[(3-sodiosulfophenyl)azo][1,1-azobisnaphthalene]-7-sulfonic acid sodium salt for laboratory research and bulk production; product code 489096. Send an inquiry for purity, packaging, price and lead time.