1,4-Butanediamine, N-(3-aminopropyl)- 1,4-Diaminobutane, N-(3-aminopropyl)- 1,5,10-Triazadecane 124-20-9 4-04-00-01300 (Beilstein Handbook Reference) 4-Azaoctamethylenediamine AI3-26636 BRN 1698591 EINECS 204-689-0 SPERMIDINE