sentences:  Recent evidence in "Anopheles gambiae" and "Culex quequinfasciatius" mosquitoes suggest DEET reduces the volatility of 1-octen-3-ol which can result in a reduction in human attraction.1-Octen-3-ol is a secondary alcohol derived from 1-octene.It exists in the form of two enantiomers, ("R")-(–)-1-octen-3-ol and ("S")-(+)-1-octen-3-ol.