5-Methyl-bis-(2-aminophenoxymethylene)-N,N,N',N'-tetraacetate Methyl Ester (N-[2-[2-[2-[Bis(2-methoxy-2-oxoethyl)amino]-5-methylphenoxy]ethoxy]phenyl]-N-(2-methoxy-2-oxoethyl)-glycine Methyl Ester)