356 LIGHT ABSORPTION CURVES OF SOME CAROTENOIDS 



Fig. 20. 



- Dihvdrobixin ; 



Dihydromethylbixin in ethanol 



Helv. chim. Acta 26 (1943) 120 



200 



300 



220 250 



i,QO 500 



»-A/n ma 



Fig. 21. Dihydrocrocetin in hexane 

 Z. angew. Cheni. 47 (1934) 662 



300 



350 



UQO 



Fig. 22. Crocetin in ethanol 

 Z. angew. Chem. 4y (1934) 662 



^50 490 



X in mp. 



