urea (yu-re´a)

NH2-CO-NH2; carbonyldiamide;the chief end product of nitrogen metabolism in mammals, formed in the liver, by means of the Krebs-Henseleit cycle, and excreted in normal adult human urine in the amount of about 32 g a day (about 6 / 7 of the nitrogen excreted from the body). It may be obtained artificially by heating a solution of ammonium cyanate. It occurs as colorless or white prismatic crystals, without odor but with a cooling saline taste, is soluble in water, and forms salts with acids; has been used as a diuretic in kidney function tests, and topically for various dermatitides. [G. ouron, urine]
u. peroxide CH4N2O. H2O2;a white crystalline compound used in an aqueous solution as an oxidizing mouthwash.
u. stibamine a u. derivative of stibanilic acid, used in the treatment of kala azar and certain other tropical diseases.


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