Agrosynth Chemicals Limited manufactures SYNPHOS - Zinc Phosphate for Controlling Rodents. Agrosynth Chemicals Limited is an ISO 9001:2000 certified company. SYNPHOS - Zinc Phosphate for Controlling Rodents is a rodenticide containing zinc Phosphide as the active ingredient. Rodenticide is a substance used to kill rodents such as house mouse, rats and bandicoots. Zinc Phosphate is an inorganic chemical used to control rodents. SYNPHOS - Zinc Phosphate for Controlling Rodents is used on crops as well as non crop areas. It is processed for use in baits as an ideal single dose poison. The rodenticide is a low bait shyness product and provided with pre - baiting and baiting process. SYNPHOS - Zinc Phosphate for Controlling Rodents come in packing that includes SYNPHOS Tins, SYNPHOS Pouches and SYNPHOS Bulk packing.