Urea, identified in the blood analysis of the Trandoshan individual Nack Movers by the Coruscant Security Force's crime scene analysis droid, Russo-ISC, was present after Movers's murder via sennari poison. The incident occurred in 7958 C.R.C.. A urea level of 6.4 was detected in Movers's blood, but the droid did not classify it as a polluting substance.
The substance urea initially appeared in the 2018 publication, Star Wars: Scum and Villainy: Case Files on the Galaxy's Most Notorious, authored by Pablo Hidalgo.