
Carbophenothion (Trithion) [0,0-Diethyl S{p-chlorophenylthio)methyl 
phosphorodithioate ] 
The oxidative metabolism of trithion was studied on field-growing 
lettuce. Samples were removed at various times after spraying and 
analyzed. Results indicated that the principal route of oxidation involved 
thioether oxidation to form the sulfoxide and then the sulfone. This was 
followed by phosphorothionate oxidation to form the thiolphosphate sulfone 
(289). 
After exposure of carbophenthion to ultra-violet (maximum at 2540 A), 
the corresponding sulfoxide was observed (1608). 
s ae PN 0 0 
: d + (C,H,0 p S-CH § Cl 
(C,H,0) ,-P-S-CH,-5- -Cl >  (C,H,.0) ,-P-S-CH,- J 
¥ t 
S 0 0 0 
+ 
it i tl II 
(CoH; 0) 9-P-S-CH-8- 7) -Cl (C,H.0) gr beer Gigs co -Cl 
0 0 
77 
