Synonyms: | 7-Hydroxy-8-[[2-sodiosulfo-4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1,3,6-trisulfonic acid trisodium salt;7-Hydroxy-8-[[3,4'-bis(sodiooxysulfonyl)azobenzene-4-yl]azo]-1,3,6-naphthalenetrisulfonic acid trisodium salt;C.I.27310;Helio Purpurin 7BL |