Carbamate is a salt derived from carbamic acid, which is obtained from amines. Carbamate is a slight variation of carbonate as it replaces one of the two oxygen atoms bonding directly to the carbonyl group with a nitrogen atom. Carbamate is toxic and insecticides such as carbaryl and aldicarb are part of the carbamate family. Other pesticides such as oxamyl, methomyl, carbofuran, ethienocarb, and fenobucarb are also part of the carbamate group. Polyurethane, a synthetic resin used to make plastics and adhesives, contains several carbamate groups in its structure.