BEHAVIORAL CHEMISTRY. “When the molecules involved are complex enough to attain a stochastic element to their structural conformation in such a way as to radically affect their function in a biological (evolvable) setting, then they have the capacity to behave, and the analysis of such molecular-level behavior would be described as behavioral chemistry. Behavioral chemistry is derived from two processes, either or both of which can be in operation at any given point in time.”
http://www.mdpi.com/2075-1729/2/4/313/htm