IL Ne s-agit pas de s-extasier sur la beaute des auteurs, mais... 4,4′-Bipyridine (abbreviated to 4,4′-bipy or 4,4′-bpy) is a bipyridine which is mainly used as a precursor to N,N′-dimethyl-4,4′-bipyridinium [(C5H4NCH3)2]2+, known as paraquat. This species is electroactive, and its toxicity arises from the ability of this dication to interrupt biological electron transfer. Tome 4 Redaction.
Author: Tommaso Piroli, Pietro Piranesi, and Francesco Piranesi. Bestiarius. 4.