Ascr#3, an ascaroside isolated from Caenorhabditis elegans, acts as a potent male attractant, and also promotes dauer formation combined with ascr#2 at low concentration.
Ascr#8 is a dauer-inducing ascaroside isolated from Caenorhabditis elegans. It synergizes with ascr#2 and ascr#3, and strongly enhances male attraction.