“SS 
| ZA i + other 
quaternary 
N¢ CH, compounds 
Nicotine 
Tsomethonium ion 
0 
CH-CH, ~CH, -C~ 
‘on 
; <> NH-CH, 
“a 
CH 
3 
Nicotine Y -(3-pyridyl1) -Y-N-methylamino 
butyric acid 
oe 
Cotinine 
rites Methonium ion 
130 
