N-4-Methylvaleroyl-O-butyroyl-L-serine methyl ester Formula: C14H25NO5 CAS#: MW: 287.35 [MS]	Dots surface:
Species utilize N-4-Methylvaleroyl-O-butyroyl-L-serine methyl ester in its chemical communication system Araneae, Theridiidae   Steatoda grossa      P ¦Category of the chemical signal A -   Attractant Al -   Allomone K -   Kairomone P -   Pheromone Sy -   Synomone¦   ¦(*) indicates that compound is active¦    False black widow