(S)-N,N'-Didecyl-2-((4-(((2,4-diamino-6-pteridinyl)methyl)methylamino)benzoyl)amino)pentanediamide 136181-93-6 Methotrexate-N,N'-bis(decylamide) Mtx bis(decylamide) Pentanediamide, N,N'-didecyl-2-((4-(((2,4-diamino-6-pteridinyl)methyl)methylamino)benzoyl)amino)-, (S)-