6856-10-6

C.I.32020 Benzoform Brown R 4-Hydroxy-6-[(2,4-dihydroxyphenyl)azo]-3-[[4-[3-[4-[(2,4-dihydroxyphenyl)azo]phenyl]ureido]phenyl]azo]naphthalene-2-sulfonic acid sodium salt 4-[[4-[[4-[2-[7-[2-(2-hydroxy-4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]-1-oxo-3-sulfonaphthalen-2-ylidene]hydrazinyl]phenyl]carbamoylamino]phenyl]hydrazinylidene]-3-oxocyclohexa-1,5-dien-1-olate