D3 antagonist.

Caproic acid is a colorless oily liquid that smells like cheese. It is a fatty acid found naturally in various animal fats and oils. Hexanoic acid is a resistance priming inducer that protects tomato plants from Botrytis cinerea.

N-3-Oxo-octanoyl-L-homoserine lactone, a quorum-sensing signal, is an Agrobacterium autoinducer.