ATP

ATP (Adenosine triphosphate) is a vital chemical in Creatures 2, Creatures 3 and Docking Station, used for almost every aspect of metabolism in a creature. It degrades into ADP when used, which can be converted back into ATP by a creature's natural breaking down of glucose. Without ATP, the creature would drop dead near-instantly. A poison called ATP Decoupler takes advantage of this, which, even in the smallest of its doses, can kill a creature within seconds.

It is also a real chemical.

When ATP reaches 0 in a C2 norn, Star Disease occurs. source


 * C2 Chemical List
 * C3 Chemical List