58 
Figure 6: Structure of some important chlordane compounds and the main metabolites oxychlordane, cis- 
and frans-heptachlorepoxide. 
The metabolic pathway of trans-nonachlor was also studied in rats. /ran.s-Nonachlor 
degrades via trans-chlordane and 1,2-dichlorochlordene to oxychlordane. The same 
study also revealed that the rate limiting step in the metabolism of trans-nonachlor in