Any polyamine that contains four amino groups.
| Member | Definition | Role |
|---|
| 3,7-diazanonane-1,9-diamine | | 2,3,2-tetramine |
| methenamine | A polycyclic cage that is adamantane in which the carbon atoms at positions 1, 3, 5 and 7 are replaced by nitrogen atoms. | hexamethylenetetramine |
| methoctramine | A tetramine that is N,N'-bis(6-aminohexyl)octane-1,8-diamine where the primary amino groups both carry 2-methoxybenzyl substituents. | methoctramine |
| n(1), n(12)-diethylspermine | A substituted spermine that is spermine in which a hydrogen attached to each of the primary amino groups has been replaced by an ethyl group. | N(1),N(12)-diethylspermine |
| norspermine | A polyazaalkane consisting of a 13-membered straight chain alkane with aza-groups at the 1-, 5-, 9- and 13-positions. | 3,3,3-tetramine |
| spermine | A polyazaalkane that is tetradecane in which the carbons at positions 1, 5, 10 and 14 are replaced by nitrogens. Spermine has broad actions on cellular metabolism. | spermine |
| thermospermine | Propane-1,3-diamine in which a hydrogen attached to one nitrogen is substituted by a 3-aminoprop-1-yl group, and a hydrogen attached to the other nitrogen is substituted by a 4-aminobut-1-yl group. A polyamine natural product, its name arises from its similarity to spermine and the fact that it was first isolated from the extreme thermophile, Thermus thermophilus. | thermospermine |
| trientine | A polyazaalkane that is decane in which the carbon atoms at positions 1, 4, 7 and 10 are replaced by nitrogens. | 2,2,2-tetramine |
| tris(2-aminoethyl)amine | | tris(2-aminoethyl)amine |