THE CHEMISTRY OP THE StJGARS 



93 



ttan dextrose and can therefore be separated from it by 

 crystallisation. 



The relationship of these and other related sugars, together 

 with their corresponding alcohols, will be rendered clear from 

 the following Table II, based on the researches of Emil Fischer 

 and other workers : — 



OH2OH 



I 

 H— 0— OH 



I 

 H— C— OH 



I 

 H— 0— OH 



I 

 CH2OH 



Adonite 



CHO 



I 

 H— 0— OH 



I 

 H— 0— OH 



I 

 H— 0— OH 



CH2OH 



Z-Eibose 



CH2OH 



I 



H— G— OH HO— OH 



I 1 



H— C— OH HO— CH 



Six-carbon Alcohols 



CH2OH CH2OH CH2OH CH2OH 



I I I I 



HO— C— H H— C— OH H— C— OH 



I I I 



H— C— OH HO— C— H HO— C— H 



HO— C— H 



I 

 HO— C— H 



I 

 CH2OH 



Z-Mannite 



H— C— OH HO— C— H 



I I 



H— C— OH HO— C— H 



H— C— OH HO— C— H 



I I 



H— C— OH H— C— OH 



CHjOH 



d-Mannite 



CH2OH 



Z-Sorbite 



CH2OH 



i^Sorbite 



CH2OH 



Dulcite 



