os ni Spa 
OH 
CH3 
Q g 
ciiy-S-4 > -0- a OCH3 aie aa ae ia ta, Ye 
CH, SCH3 dcx, H3 CH3 CH; 
Fenthion Fenthionoxon 
; ino, Yo 
UI i it 
cts -$- 7) poe -OCH3 ——> CH,0-P-0- 4 poor = init tal Aa, 
bet, CH3 Hg OCH, CH, 
Fenthion Sulfoxide 
0 0 S og 
CH3-$ -0- b- -OCH3 ——> CH30-t -P-0- <4 5° CH; ——>CH30- 46 bo 5% 
O bcx bcx 
SCH, 3 CH, CH 
CH3 1 
Fenthion Sulfone 
Oa 
S 
il 
CH,0 -P -OH 
OCH3 
i Q 
CH30-P-0H CH,0-P-OH 
\ | 
it 
HO-P-OH CH30- -OH 
| 
by OH 
Sy. 0 yee 
il 
HO-P-OH 
OH 
114 
