1,14-Bis(ethylamino)-5,10-diazatetradecane 1,4-Butanediamine, N,N'-bis(4-(ethylamino)butyl)- 119422-08-1 BE-4-4-4 BEHSpm DEHSPM DRG-0203 Diethylhomospermine [FDA 223A] N(1),N(14)-Bis(ethyl)homospermine N(sup 1),N(sup 14)-Bis(ethyl)homospermine N(sup 1),N(sup 14)-Diethylhomospermine N,N'-Bis(4-(ethylamino)butyl)-1,4-butanediamine N1 N14-bis(ethyl)norspermine