Propanil (DCPA, Stam-F 34, DPA) [N-(3,4-Dichloropheny1)propionamide ] 
Liver homogenates from rats, mice, rabbits, and dogs contained an 
enzyme which hydrolyzed propanil to form 3,4-dichloroaniline (1502). 
In intact rice plants, propanil was metabolized to four compounds. 
Two were identified as 3,4-dichloroaniline and N-(3,4-dichlorophenyl1) 
glucosylamine. The latter was apparently converted to other unidentified 
metabolites (1363). In other studies, in addition to the glucosylamine, 
dichloroaniline was found combined as a saccharide containing glucose, 
xylose and fructose and combined with lignin (1618). Plants metabolized 
the propionic acid moiety to CO, (1597). 
From cell free extracts of plants, an acylamidase system was obtained 
that transformed propanil into 3,4-dichloroaniline and five other metabo- 
lites (1364, 1365). 
In soils, propanil was degraded to dichloroaniline and 3,3'4,4'- 
tetrachloroazobenzene (89, 1627, 1649). A fungus was isolated that could 
utilize propanil as the sole source of organic carbon. C02 was formed by 
oxidation of the propionate moiety. Dichloroaniline was also a product 
of the transformation but did not persist (1674). 
H fox CH»—-CH 
ee Pe ae 
eile : NH, 
es ser 
a) Cl 
1 1 
Propanil 3,4-Dichloroaniline 
Sea eas 
i —__s 
: pa C1, . 
1 1 1 
3,3',4,4'-Tetrachloroazobenzene 

280 
