N-carboxyurea
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allophanic acid — Urea carbonic acid; its amide is biuret (allophanamide). SYN: carbamoylcarbamic acid, N carboxyurea. * * * al·lo·phan·ic ac·id (al″o fanґik) urea carbonic acid which does not occur as the free acid but only in salts or compounds; its amide… … Medical dictionary
