Also available in 25 mg 50 mg 100 mg and bulk. Please contact Fisher for quotes. Imidacloprid-urea is a secondary metabolite of imidacloprid. Imidacloprid is a potent and widely used neonicotinoid with inhibitory effects on pests of cereals vegetables tea and cotton. imidacloprid-urea can occupy or block the adsorption sites of imidacloprid on the soil which may affect the fate transport and bioavailability of imidacloprid in the environment. purity: 99%