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ChEBI: Butamifos is a C-nitro compound.

In water, butamifos undergoes photoinduced intramolecular oxygen transfer from the nitro group to the P=?S moiety, resulting in the formation of the nitrosooxon derivative. Through the successive reduction of the nitroso group to hydroxyamino and amino groups, as well as oxidation to the nitro group, the nitrosooxon derivative is finally photodegraded to various polar compounds. The isomer of butamifos is photodegraded more slowly than butamifos in air, and its main photodegradation pathway in water is oxidation of the arylmethyl group to form a corresponding carboxylic acid derivative.