FUNCTION 



analogues. They found that maximum fluorescence occurred at a 

 concentration similar to that in which the flavines occur in the eyes 



Oxygen 

 consumption 



CH 



,Ns 



:K 



I ii 



Riboflavine (yellow) 

 R 



CH3 



CH3 



CH, 



CHs' 



X) 



^ ' CO 



I + 

 \ y. NH 



^N/ YO^ CH, 



/V/\n^^co/" 



0-25 



Verdoflavine (bronze-green) 



R 



vV^"vo 



■N- 



0/ 



NH 



0-50 



Chloroflavine (grass-green) 

 R 



CH, 



CH 



CHs 



/V^%o 



-NH 



CH, 



\/\/''^''%o 



cH3A/^NHrN:o/ 



NH 0-75 



+ 



Rhodoflavine (carmoisine red) 

 R 

 Nv .NH 



CH. 



HI 



CO 



NH 



I '00 



Leucoflavine (white) 



of fishes. This observation seems of particular significance in view 

 of the clinical data (see page 174) associating the presence of opaque 

 cornea and impaired vision in dim light with ariboflavinosis. It was 



199 



