Abstract The use of pesticides for agricultural cultivation may prevent losses due to pest attacks, but excessive and uncontrolled cause contamination pesticide residues in the fruits vegetables. Organophosphate are highly toxic their residue vegetables neurological disorders humans. enter body animals humans through oral routes or respiratory systems. Common analytical methods detect organopho...

The control of the southern cattle tick, Boophilus microplus (Canestrini), in Mexico and many other countries relies on chemical acaricides. Boophilus microplus has developed resistance to all major classes of acaricides in recent years. To gain a better understanding of the resistance and to develop resistance management strategies that benefit both Mexican ranchers and USDA's cattle fever tic...

Organophosphorus (OP) compounds are organic derivatives of phosphorus that have largely been used as pesticides and nerve agents. Tetraethylpyrophosphate was synthesized in 1854 as the first OP cholinesterase inhibitor. During 1934–1944, Gerhard Schrader, a German chemist at I. G. Farben industries and his coworkers synthesized about 2,000 OP compounds, including parathion as a pesticide and ta...

The whole molecule of the title compound, C14H8Cl2N4, is generated by inversion symmetry. The dihedral angle between the 2-chloro-phenyl ring and the tetra-zine ring is 47.65 (5)°. In the crystal, mol-ecules are linked by slipped parallel π-π inter-actions [centroid-centroid distance = 3.8199 (5), normal distance = 3.3127 (8), slippage 1.902 Å] forming columns along the a-axis direction.

They are used as pesticides but can also be used as 'nerve gas'. This is prohibited under the Geneva Convention but could be used by terrorists or rogue regimes. There is some suggestion that the use of OP pesticides may have caused some neurotoxicity and be responsible for 'Gulf War syndrome'. Certainly, insecticides were freely used, as were many other chemicals. The syndrome is inconsistent ...