Urea is not a saturated compound. It is a carbamide functional group with the chemical formula CO(NH2)2. It is a colorless, crystalline solid that is highly soluble in water. Urea has two nitrogen atoms and one carbon atom, and each nitrogen atom is bonded to two hydrogen atoms. The carbon atom is bonded to the two nitrogen atoms and one oxygen atom. Urea is an organic compound that is not a hydrocarbon, as it contains nitrogen and oxygen atoms in addition to carbon atoms.