Ethylene Dibromide 
Part of the ethylene dibromide adsorbed on wheat underwent decom- 
position to ethylene glycol and inorganic bromide on heating. The glycol 
reacted to a small degree with the protein, probably the -SCH3 of methio- 
nine (Bridges, 1956). 
Br-CH»-CHy-Br ———3= HO-CH,-CH,OH + Br- 
2 2 OH" 2 2 
Ethylene Ethylene 
Dibromide Glycol 
Famphur (p-N,N-dimethylsulfamoylphenyl dimethyl phosphorothionate) 
Famphur was degraded at varying rates by mice, American cockroach 
(Periplaneta americana L.), and milkweed bugs [Oncopeltus fasciatus (Dall.)]. 
H?-labeled famphur was injected and analyses eve made by thin-layer 
chromatography. In addition to famphur, both famoxon and N-desmethyl 
famphur were found (0,Brien et al., 1965). 
S | 
CHO-P-OCH 
, x 
CHp-P-ocH, CHO-P-OCH, 
ae 30, 
NY 
H CH 
i ie OCH oO, 
4 2 Famphur N 
yy . 
( 
HCH, He CH, 
N-desmethyl | Famoxon 
Famphur 
112 
