5,10-Dideazaaminopterin 95674-53-6 L-Glutamic aid, N-(4-(2-(2,4-diaminopyrido(2,3-d)pyrimidin-6-yl)ethyl)benzoyl)- N-(4-(2-(2,4-Diaminopyrido(2,3-d)pyrimidin-6-yl)ethyl)benzoyl)-L-glutamic aid