American Cyanamid 12008 
(0,0-Diethyl S-isopropylithiomethy lphosphorodithioate) 
This compound is almost identical with thimet and appears to follow 
a metabolism route similar to thimet (Bowman and Casida, 1957). 
i S CH, 
i 
(C5H50) 5 -P-S-CH7-S-CH)CH3 (C5Hs50) 5 -P-S-CH>-S-CH 
CH, 
Thimet Am. Cyanamid 12008 
Amiben (3-Amino-2,5-dichlorobenzoic acid) 
Large amounts of amiben were taken up by soybeans but the herbicide 
disappeared rapidly. Most of the remaining amiben, present as a con- 
jugate, could be released by alkaline hydrolysis. Similar results were 
obtained with tomato plants (Colby, 1964). In recent studies with 
soybean plants, Glycine Max (L.) Merr, and barley, Hordeum vulgare L., 
the N-glycoside of amiben was isolated. Other metabolites were also 
indicated (Colby, 1965). 
Studies with soil microflora indicated that breakdown of amiben 
occurred (Rauser and Switzer, 1962) and that the carboxyl was cleaved 
slowly but steadily (MacRae and Alexander, 1965). Other studies showed 
that amiben underwent photo-chemical alteration when exposed to light 
from sun lamps (Sheets, 1963). 
0. 0H 0. 0H 
ra s/ 
C| 6"12”6 
‘a 
Amiben Amiben N-glycoside 
Cl H2 
26 
