maturing eggs of the desert locust , schistocerca gregaria , contain a variety of ecdysteroid ( insect moulting hormone ) conjugates and metabolites , four of which have been previously isolated from polar extracts and identified as ecdysonoic acid , 20-hydroxyecdysonoic acid , 3-acetylecdysone 2-phosphate and ecdysone 2-phosphate .
C0058915
ecdysteroid
C0013494
ecdysone