<prompt> Which of the following is not a Synthetic Pyrethyroid Compound?DDTPermethrinPropahrinCypermethrin  <response>: DDT is not a synthetic Pyrethroid compound while the other three Propahrin, Cypermethrin and Permthrin are synthetic pyrethroid compounds Ref: Goldfranks Toxicological Emergencies, 8th Edition, Page 1529; Parks Textbook of Preventive and Social Medicine, 19th Edition, Pages 637-639. 