Liver homogenates were fortified with NADP and incubated with 
analog. Decomposition products are tabu- 
methylparathion and its oxon 
lated (Table I) (1741). 
Metabolite 
Guinea Pig 
Oxon 
Desmethylphosphorothioate 
Desmethylphosphorate 
4-nitrophenol 
Unidentified 
Rat 
Oxon 
Desmethylphosphorothioate 
Desmethylphosphorate 
4-nitrophenol 
Unidentified 
Mouse 
Oxon 
Desmethylphosphorothioate 
Desmethylphosphorate 
4-nitrophenol 
Unidentified 

Table I 
Compounds Added 
Methylparathion 
3:4 DA 
9,69 
1.85 
2.94 
2481 
OWONM & 
oe) 
> 
OWN @ WY 
> 
i) 
266 
Methylparaoxon 
ee 
= ee 
=< oe oe 
=e SS 
