Fisher, D. E. published the artcileFate of Banvel T, ioxynil, Tordon, and trifluralin in the dairy cow, Computed Properties of 3336-34-3, the publication is Journal of Dairy Science (1965), 48(12), 1711-15, database is CAplus.
The metabolic fate of 5 ppm. of 4 orally administered herbicides was determined by gas chromatography on neutron activation analysis of total I in the feces, urine, rumen contents, and milk of dairy cows. No residues of Banvel T (2-methoxy-3,5,6-trichlorobenzoic acid), ioxynil (3,5-diiodo-4-hydroxybenzonitrile), or trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) were found in the milk. Banvel T and Tordon (4-amino-3,5,6-trichloropicolinic acid) were eliminated unchanged in the urine. No ioxynil or a possible metabolite, 3,5-diiodo-4-hydroxybenzoic acid, was found in the milk, urine, or feces by gas chromatography, but neutron activation analysis of total I indicated that substantial amounts of ioxynil and a metabolite, possibly 3-iodo-4-hydroxybenzonitrile, were present. Trifluralin completely disappeared during 24 hrs. in an artificial rumen, possibly due to nitro reduction
Journal of Dairy Science published new progress about 3336-34-3. 3336-34-3 belongs to nitriles-buliding-blocks, auxiliary class Chloride,Nitrile,Benzene,Phenol, name is 2,6-Dichloro-3-hydroxybenzonitrile, and the molecular formula is C7H3Cl2NO, Computed Properties of 3336-34-3.
Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts