ABSTRACT
A large number of nitrogen-containing pesticides are characterized by the carbamate or urea functional group or triazine ring in their structures. ese substances constitute the three most common classes of nitrogencontaining pesticides. e structural features of these three distinct classes of substances are shown below:
where R1 and R2 are alkyl or aryl groups or hydrogen atoms. Compounds containing a methyl group attached to the N atom are also known as N-methyl carbamates.
