LIGHT ABSORPTION CURVES OF SOME CAROTENOIDS 357 



Fig. 23. 



350 



450 



500 



Methylazafrin ; — Methylazafrinone, in ethanol 



Ber. 66 (i933) 890 



200 



wo 



Fig. 24. Taraxanthin in ethanol 

 Z. angew. Chem. 47 (1934) 664 



-X in m; 



f 



Carotenoids 23 



