38o 



SUBJECT INDEX 



a : a-Dihydroxyperhydronorbixin di- 

 methyl ester 265 

 Dihydroxy-semi-/3-carotenone 139 



1 : i6-Dihydroxy-2 : 6 : 11 : 15-tetra- 



methylhexadecane-i : i6-dicar- 



boxylic acid dimethyl ester 266 

 a : a-Dimethyl-(5-acetyl valeric acid 47 

 y : y-Dimethyl-(5-acetyl valeric acid 47 

 3 : 8-Dimethyldecapentaene-i : lo-di- 



carboxylic acid 289 

 3 : 8-Dimethyldecapentaene-i : lo-di- 



carboxylic acid dimethyl ester 289 

 3 : 8-Dimethyldecapentaene-i : lo-di- 



carboxylic acid monoamide 290 

 a : a-Dimethylglutaric acid 47, 131 

 6 : ii-Dimethylhexadecane-2 : 15-di- 



carboxylic acid 280 

 6 : ii-Dimethylhexadeca-3 : 5 : 7 : 9 : 



: II : i3-hexene-2 : 15-dicarboxylic 



acid 279 



6 : ii-Dimethylhexadecane-2 : 15-dione 



275, 281 

 a : a-Dimethylmalonic acid 47, 131 



2 : 6-Dimethylnaphthalene 49, 132 



2 : 7-Dimethylnonatetraene-i-al-9- 



carboxylic acid methyl ester 290 

 a : a-Dimethylsuccinic acid 47, 131 

 Dimethyl sulphate 264 



3 : 8-Dimethylundecapentaene-ii-al- 



i-carboxylic acid methyl ester 288 



Diphenylpolyenes 60 



Double bond, detection of 43 



Double bond, influence on light absorp- 

 tion of 54 



Echinenone 324 



Eloxanthin 207 



Elution 27 



Epiphasic carotenoids 21, 22 



Epoxides 61 



Epoxide group, influence on light ab- 

 sorption of 54 



Eschholtzxanthin 323 



Eschholtzxanthin diacetate 324 



Eschholtzxanthin dibenzoate 324 



Eschholtzxanthin di-p-nitrobenzoate 

 324 



Eschholtzxanthin dioleate 324 



Eschholtzxanthin dipalmitate 324 



Ethanol 27 



Ether 27 



Ethyl acetate 27, 43 



Ethylnorbixin 270 



Fennicotterin 334 

 Fluorescence spectrum 8 

 Flavacin 307 



- Constitution 307 



- Preparation 309 

 Flavochrome 158 

 Flavorhodin 299, 359 

 Flavoxanthin 33, 207 



- Constitution 209 



- Derivatives 210 



- History 207 



- Occurrence 208 



- Preparation 208 



- Properties 209, 352 

 Flavoxanthin diacetate 210 

 Fucoxanthin 309 



- Constitution 310 



- History 309 



- Occurrence 310 



- Preparation 310 



- Properties 311, 351 

 Fuller's earth 26 

 Furanoid oxides 62, 63 



Gazaniaxanthin 313 



- Constitution 313 



- History 313 



- Preparation 313 



- Properties 314 



- Stereoisomers 314 

 Geronic acid 47, 131 

 Glycymerin 328 



H 



Haematoxanthin 337 

 Helenien 204 

 Hemeralopia 16 

 Hexahydrocrocetin 280 

 Hexamethyltetracosaundecaenedial 296 

 Hexane 43 

 Hydrochloric acid 7 

 Hydrogenation 43 

 Hydroxy-a-carotene 

 Hydroxy-/?-carotene 

 Hydroxyl group, determination of 45 

 Hydroxy 1 group, influence on light ab- 

 sorption of 55 

 Hydroxy semi-/?-carotenone 

 Hypophasic carotenoids 21 



Insect pigments 6 

 Inulin 26 



