Methyloctadecanal Formula:C19H38O CAS#: MW:282.5 [MS] [ Kovats ] Jmol._Canvas2D (Jmol) "jmolApplet0"[x] Dots surface: no dotsvanderWaals dots surfacesolvent-accessible surfaceSpacefill:spacefill offspacefill 20%spacefill 95%Wireframe:wireframe offwireframe onwireframe .15wireframe .25wireframe .5background ivorybackground whitebackground blackbackground yellowbackground salmonbackground palegreenbackground skyblueRed blue stereo on/offElement label on/off Species utilize Methyloctadecanal in its chemical communication system Lepidoptera, Nymphalidae, Heliconiinae, Heliconiini Heliconius melpomene rosina P �Category of the chemical signal A - Attractant Al - Allomone K - Kairomone P - Pheromone Sy - Synomone� �(*) indicates that compound is active�