pe 
x R 
CH.-N N 
5 ee 
H2 
-CH 
Mylone 
S S 
t ! 
CH3-N-t-sR CH; -N-C-N-R 
H . H- 
s 
: Kase J 
t 
CH3-NH-C-CH3 + CH,NH, + H)S + CH,-N=C=s 
Hy0 
CO, + Hy5 + CH3NH, 
HCHO + CH3NH, + HS cy -N-cH OH 
CH 
Ce 
DE N-CHy 
CO» + H50 + SO + NH3 ci, 
SH 
CHo CH» 
HS -CH CH-SH 
Ho 
128 
