63909-95-5 5H-Thiazolo[2,3-b][1,3]thiazin-4-ium,6,7-dihydro-3-hydroxy-2-(2-phenylacetyl)-, inner salt
6391-32-8 2-[[2-Oxo-1-[(2-methoxy-5-sodiosulfophenyl)aminocarbonyl]propyl]azo]-5-[N-[3-sodiooxycarbonyl-4-[[2-oxo-1-[(4-sodiosulfophenyl)aminocarbonyl]propyl]azo]phenyl]ureido]benzoic acid sodium salt