Definition: A biogenic polyamine formed from spermidine. It is found in a wide variety of organisms and tissues and is an essential growth factor in some bacteria. It is found as a polycation at all pH values. Spermine is associated with nucleic acids, particularly in viruses, and is thought to stabilize the helical structure.
spermine nitric oxide complex [ N-(4-(1-(3-aminopropyl)-2-hydroxy-2-nitrosohydrazino)butyl)-1,3-propanediamine,NOC 22,NOC-22,SPER-NO,spermine NONOate,spermine-NONOate,spermine-nitric oxide ] structure given in first source