polyazaalkane tetraethylenepentamine 1,11-Diamino-3,6,9-triazaundecane 1,4,7,10,13-pentaazatridecane 189.195 189.30192 3,6,9-triazaundecamethylenediamine 3,6,9-triazaundecane-1,11-diamine Beilstein:506966 C8H23N5 CAS:112-57-2 CHEBI:35007 CHEBI:49797 CHEBI:49798 FAGUFWYHJQFNRV-UHFFFAOYSA-N Gmelin:51196 InChI=1S/C8H23N5/c9-1-3-11-5-7-13-8-6-12-4-2-10/h11-13H,1-10H2 KEGG:C14690 LINCS:LSM-5530 N-(2-aminoethyl)-N'-[2-[(2-aminoethyl)amino]ethyl]-1,2-ethanediamine N-(2-aminoethyl)-N'-{2-[(2-aminoethyl)amino]ethyl}ethane-1,2-diamine NCCNCCNCCNCCN TEPA Tetraethylenepentamine Tetraethylenpentamin chebi_ontology tetren