Urea is the first organic compound artificially synthesized and is widely present in nature. For example, fresh human feces contain 0.4% of urea.
Alias: carbamide, carbamide, urea.
Molecular formula: CO(NH2)2. Because this substance is contained in human urine, it is named urea. Urea contains 46% nitrogen (N), which is the highest nitrogen content among solid nitrogen fertilizers.
