The molecule is a quaternary ammonium salt that is the tetrakis(N,N,N-trimethylmethammonium) salt of 5-({[4-(13-{4-[({3-carboxy-4-[(2,7-dichloro-6-hydroxy-3-oxo-3H-xanthen-9-yl)methyl]phenyl}carbonyl)amino]-2,5-bis(methyloxy)phenyl}-1,4,10-trioxa-7,13-diazacyclopentadecan-7-yl)-2-hydroxy-5-(methyloxy)phenyl]amino}carbonyl)-2-(2,7-dichloro-6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid. It has a role as a fluorochrome.
5-[[4-[13-[4-[[3-carboxylato-4-(2,7-dichloro-3-oxido-6-oxoxanthen-9-yl)benzoyl]amino]-2,5-dimethoxyphenyl]-1,4,10-trioxa-7,13-diazacyclopentadec-7-yl]-2,5-dimethoxyphenyl]carbamoyl]-2-(2,7-dichloro-3-oxido-6-oxoxanthen-9-yl)benzoate;tetramethylazanium