Notes: Aldicarb-d3 is intended for use as an internal standard for the quantification of aldicarb (Item No. 18466) by GC- or LC-MS. Aldicarb is a carbamate pesticide.{30082} It is an acetylcholinesterase (AChE) inhibitor with an IC50 value of 5 µM.{39986} Aldicarb induces mortality in the two-spotted spider mite (T. urticae) with an LC50 value of 21 ppm in a slide-dip assay and in the nematode (M. exigua) with an LC50 value of 24 µg/L.{69217,69218} It has been used to study CREB and acetylcholine signaling.{30085} Formulations containing aldicarb have been used as pesticides in agriculture.