This molecule features a saturated five-membered ring consisting of four carbon atoms and one nitrogen atom (a pyrrolidine-type ring). A single hydroxyl substituent is attached to the carbon at the beta position relative to the ring nitrogen. A straight chain of four carbon atoms extends from the ring nitrogen, with the terminal carbon forming an amidine group; in this group, the terminal carbon is double-bonded to one nitrogen atom and single-bonded to another nitrogen atom, both of which are unsubstituted.
