Synonyms: 2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-3-((4'-((8-amino-1-hydroxy-3,6-disulfo-2-naphthalenyl)azo)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-;2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-3-(2-(4'-(2-(8-amino-1-hydroxy-3,6-disulfo-2-naphthalenyl)diazenyl)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)diazenyl)-4-hydroxy-;63216-97-7