Term Name:	carboxyspermidine(2+)
Synonyms:	(2S)-2-ammonio-5-[(3-ammoniopropyl)ammonio]pentanoate, (2S)-2-azaniumyl-5-[(3-azaniumylpropyl)azaniumyl]pentanoate, carboxyspermidine
Definition:	The α-amino-acid cation formed from carboxyspermidine by zwitterion formation between the carboxy and α-amino groups and protonation of the nitrogen atoms at positions 5 and 10; the major structure of carboxyspermidine at pH 7.3.
Ontology:	ChEBI [CHEBI:65072]  ( EBI )