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|Section2= |Section7= |Section8= }} Carbamic acid is the compound with the formula H2NCO2H. The attachment of the acid group to a nitrogen or amine (instead of carbon) distinguishes it from carboxylic acid and an amide. Many derivatives and analogues of carbamic acid are known. They are generally unstable, reverting to the parent amine and carbon dioxide. The deprotonated anion (or conjugate base) of this functional group is a carbamate. Carbamic acid is a planar molecule. ==Occurrence== Carbamic acid is an intermediate in the production of urea, which involves the reaction of carbon dioxide and ammonia. : CO2 + NH3 → H2N-CO2H : H2N-CO2H + NH3 → CO(NH2)2 + H2O "Carbamoyltransferases" are transferase enzymes classified under EC number 2.1.3. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「carbamic acid」の詳細全文を読む スポンサード リンク
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