allelochemic
From ZooTerms (Dictionary of Invertebrate Zoology)
allelochemic also allelochemical (noun; Greek allelon, one another; chemeia, pertaining to chemistry and chemical terms): 1. A chemical agent of natural origin involved in interaction between species or individuals; sometimes divided into four subgroups based on whether the emitter, the receiver, or both benefit in the interaction: allomones, kairomones, synomones and apneumones.
2. Xenomone.
