Carbamate

Carbamate is a complex functional group in organic chemistry. It is a carbamic acid molecule where some or all hydrogen atoms have been replaced. They have an amide and ester group that share a carbonyl.

There is also a carbamate ion, . The carbamate ion has two hydrogen atoms on the nitrogen atom, and a negative electric charge shared by the oxygen atoms. Compounds with this ion are called carbamate salts. Ammonium carbamate is an important carbamate salt.

In polymer chemistry, the carbamate group is called urethane. Polyurethanes are polymers linked together by carbamate groups. Formally, the name "urethane" refers to ethyl esters.

 Uses 
 Insecticide 
Some carbamate compounds are used to kill insects. Carbaryl and methomyl are examples of carbamate insecticides. These insecticides are toxic to humans.

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Category:Functional groups