Glutamic acid, N-[p-[[[2-(or 4)-amino-4(or 2)-[[[4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamido]methyl]amino]-6-pteridinyl]methyl]methylamino]benzoyl]-, disodium salt L-Glutamic acid, N-[4-[[[4-amino-2-[[mino-1,4,4a,5,5a,6,11,12a-pentahydroxy-N-[6-mercaptopurin-7(or 9)-ylmethyl]-6-methyl-1,11-dioxo-o-6H-purin-7(or 9)-yl]methyl]-, [4S-(4.alpha.,4a.alpha.,5a.alpha.,6.beta.,12a.alpha.)]-ha.,5a.alpha.,6.beta.,12a.alpha.)]- NSC67590