UREA is validvalid

two amino radicals joined by a carbonyl group, used by mammals to excrete nitrogen

5,050 of 196,601 in NWL2023·also valid in CSW24

a substance found in mammalian urine, the chief form in which nitrogenous waste is excreted

267,267 of 280,887 in CSW24·also valid in NWL2023

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