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... > PHYSICAL SCIENCES > chemistry > chemical substances > chemical elements and compounds > inorganic compounds > organic compounds > organic compounds by structure or composition > organic compounds by non-carbon element > organic compounds by non-metallic element > organophosphorus compounds > organophosphorus pesticides > organophosphorus nematicides

... > PHYSICAL SCIENCES > chemistry > chemical substances > chemical substances by use or effect > pest control compounds > pesticides > pesticides by composition > organophosphorus pesticides > organophosphorus nematicides

... > PHYSICAL SCIENCES > chemistry > chemical substances > chemical substances by use or effect > pest control compounds > pesticides > pesticides by target organism > nematicides > organophosphorus nematicides