358 LIGHT ABSORPTION CURVES OF SOME CAROTENOIDS 



250 300 350 400 450 



Fig. 25. Rhodoviolascin in hexane 

 Helv. chim. Acta 26 (1943) 118 



500 550 



■ ^Xin m/i 



logs 

 3.4 



2.9 



2.4 



1.9 





250 300 350 400 450 



Fig. 26. Rhodopin in ethanol 

 Helv. chim. Acta 26 (1943) 118 



500 550 

 ^•Xinmfi 



