Constitution of Glycocoll and its 

 Derivatives. 



(Appendix : General theory and Nomenclature 

 of Amido-acids.) 



By 



Jöji Sakurai, F. C. S., Rigakuhakushi, 



Professor of Chemistry, Imperial University. 



Glycocol], the prototype of that large and important class of 

 compounds generally called amido-acids, is usually represented as 

 amido-acetic acid, HoN'.CHo.COOH, in spite of an abundance of facts 

 which show that it must be . considered as an internal ammonium salt 

 of the constitution, 



ILC-XH3 



I I 

 OC-0 ; 



and the object of this paper is to strengthen the evidence in support of 

 the latter view and, at the same time, to deprecate the almost universal 

 employment of the open formula in describing the reactions of this 

 compound. 



The view that o-jycocoll is constituted as an internal ammonium 

 salt was first suofofested bv Erlenmever and Sigel (Lieh. Ann., 176, 349 

 [1875]), in order to account for the perfect neutrality of tliis compound 

 towards litmus ; it may also be advanr-ed to explain the high melting 



