79771-28-1 89286-75-9 EINECS 279-256-2 Pyridinium, 1,1'-((6,13-dichloro-4,11-disulfo-3,10-triphenodioxazinediyl)bis(imino-2,1-ethanediylimino(6-((2,5-disulfophenyl)amino)-1,3,5-triazine-4,2-diyl)))bis(3-carboxy-, bis(inner salt), hexasodium salt Pyridinium, 1,1'-((6,13-dichloro-4,11-disulfo-3,10-triphenodioxazinediyl)bis(imino-2,1-ethanediylimino(6-((2,5-disulfophenyl)amino)-1,3,5-triazine-4,2-diyl)))bis(3-carboxy-, dihydroxide, bis(inner salt), hexasodium salt