4,4'-bis(4,6-di(3-aminophenyl-N,N-bis(2-carbamoylethyl)-sulfonilimino)-1,3,5-triazine-2-ylamino-bi-phenyl-2,2'-disulfonic acid, disodium salt)
4,4'-bis(4,6-di(3-aminophenyl-n,n-bis(2-carbamoylethyl)-sulfonilimino)-1,3,5-triazine-2-ylamino-bi-phenyl-2,2'-disulfonic acid, disodium salt)