Oxychlordane (C(10)H(4)Cl(8)O), a minor heretofore unidentified metabolite, was isolated from fat of pigs on diets heavily dosed with pure isomers of the insecticide, chlordane (C(10)H(6)Cl(8)). Chemical and spectroscopic evidence provides bases for proposal of structure of the metabolite as 1-exo-2-endo-4,5,6,7,8,8-octachloro-2,3-exo-epoxy-2,3,3a,4,7,7a-hexahydro-4,7-methanoindene.

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4) Kittleson, A4. R., Anal. Chem. 24, 50% transmittance.With the absorbance of about 0.3, equivalent to 41, 3440-7 (1908).

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Crude soybean and cottonseed oil were processed using simulated commercial processing procedures to determine if oil processing would remove chlorinated pesticide contaminants of either natural or spiked origin. Two crude oil lots were spiked with endrin, DDT, DDE, aldrin, dieldrin, heptaehlor and heptaehlor epoxide before processing. Representative samples of crude oil and products following each processing step were analyzed for pesticide contamination. Results indicated that alkali-refining or subsequent bleaching did not reduce chlorinated pesticide contamination. Hydrogenation prior to deodorization reduced endrin contamination. Deodorization, with or without hydrogenation, eliminated chlorinated pesticides. The results of this study indicate that normal commercial processing of crude vegetable oils for human consumption effectively removes any chlorinated pesticides which may be present in crude oils. It is hypothesized that chlorinated pesticide removal is achieved by volatilization during deodorization, which is supported by known volatilization characteristics, similarity of behavior in pesticides studied, and absence of the pesticide or its conversion products in the finished oils, or both.