This trialkoxysilane urea derivative, also known as (3-ureidopropyl)trimethoxysilane, presents as a colorless to slightly pale yellow liquid. Store in a cool and dark place, under inert gas and protected from moisture. 1-[3-(Trimethoxysilyl)propyl]urea is known to be incompatible with oxidizing agents and should not be stored or handled in their vicinity.