Task: Text Categorization
Input (English): In the body, a reaction that uses the enzyme arginase produces both ornithine and this product in a process that has a citrulline intermediate. Birds and reptile produce a similar acidified form of this compound which is excreted as a white mass. Sometimes known as carbamide, it contains two amino groups bonded to a central carbonyl group and was produced by Friedrich Wohler (VUH-ler) in a reaction that showed that organic compounds could be produced from simple starting ingredients. For 10 points, name this compound found in mammalian urine.
Output (English): Science