SMILES: C(CN)CNCC[C@@H](C(=O)O)N
Description: The molecule is the non-proteinogenic L-alpha-amino acid that is norspermidine (1,5,9-triazanonane) carboxylated with S-configuration at the 2-position. It is a conjugate base of a carboxynorspermidine(2+). It derives from a hydride of a bis(3-aminopropyl)amine.