2-Butenal Formula: C4H6O CAS#: 4170-30-3 MW: 70.09 [MS]  [ Kovats ]  [Occurrence in plant]  [Chemdraw]	Dots surface:
Species utilize 2-Butenal in its chemical communication system Heteroptera, Scutelleridae, Scutellerinae   Chrysocoris stolli      P ¦Category of the chemical signal A -   Attractant Al -   Allomone K -   Kairomone P -   Pheromone Sy -   Synomone¦   ¦(*) indicates that compound is active¦    Lychee shield bug