Pfizer Handbook of Microbial Metabolites 298 



Amanita mappa and certain related species 

 Bufotenin occurs also in the skin secretions of toads. 

 Theodor Wieland and Werner Motzel, Ann. 581 10 (1953). 



662 Necrosamine, C..,)H44N2 (Hydrochloride) crystals, m.p. ~275° 

 (dec). 



CH3— (CHoJu— CH— CH— CH2— CH2— CH3 



NH2 NH2 



Escherichia coli 



This amine was a component of the phospholipide frac- 

 tion. 



Miyoshi Ikawa, J. B. Koepfli, S. G. Mudd and Carl Niemann, 

 J. Am. Chem. Soc. 75 3439 (1953). 



