SMILES: C(C[C@@H](C(=O)O)N)CNCCCN
Description: The molecule is the L-alpha-amino acid that is spermidine (1,5,10-triazadecane) carboxylated with S-configuration at the 2-position. It is a conjugate base of a carboxyspermidine(2+). It derives from a hydride of a spermidine.