1,4,8,11-Tetraazaundecane

1,4,8,11-Tetraazaundecane
Names
	Preferred IUPAC name N1,N3-Bis(2-aminoethyl)propane-1,3-diamine
	Other names 2,3,2-Tet, N,N′-bis(2-aminoethyl)-1,3-propanediamine
Identifiers
CAS Number	4741-99-5 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	1742732
ChEBI	CHEBI:30348;
ChEMBL	ChEMBL1214193;
ChemSpider	70844;
ECHA InfoCard	100.022.958
EC Number	225-254-1;
Gmelin Reference	27228
PubChem CID	78479;
UNII	3J941O9333;
CompTox Dashboard (EPA)	DTXSID8063591 ;
	InChI InChI=1S/C7H20N4/c8-2-6-10-4-1-5-11-7-3-9/h10-11H,1-9H2 Key: UWMHHZFHBCYGCV-UHFFFAOYSA-N;
	SMILES C(CNCCN)CNCCN;
Properties
Chemical formula	C7H20N4
Molar mass	160.265 g·mol−1
Appearance	colorless oil
Density	0.9501
Boiling point	80–82 °C (176–180 °F; 353–355 K) 20 Torr
Hazards
	GHS labelling:[1]
Pictograms
Signal word	Danger
Hazard statements	H314
Precautionary statements	P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, P501
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

1,4,8,11-Tetraazaundecane, IUPAC name: N,N'-bis(2-aminoethyl)propane-1,3-diamine, is the organic compound with the formula (H₂NCH₂CH₂NHCH₂)₂CH₂. It is a tetramine, consisting of two primary amines and two secondary amines positioned symmetrically. Like many amines, this compound has a high affinity for carbon dioxide. The compound can be prepared by treatment of 1,3-dibromopropane with excess ethylenediamine.

The compound has been examined often as a ligand in coordination chemistry. It is tetradentate ligand similar to 1,4,7,10-tetraazadecane. By condensation of its nickel(II) complexes with formaldehyde, one can obtain a variety of macrocyclic ligands.