CONTENTS Xix 



VI. Carotenoids and Related Compounds (continued) 



(b) Ph.ysalienone 564 



(c) Zeaxanthin Mono-epoxide, Antheraxanthin 564 



(d) Mutatoxanthin 565 



(e) Zeaxanthin Di-epoxide, Violaxanthin 566 



(6) Violaxanthin 566 



a. Structure 566 



b. Occurrence 567 



(7) Auroxanthin 567 



(8) Flavoxanthin and Chrysanthemaxanthin 568 



(9) Taraxanthin 570 



(10) Fucoxanthin 571 



a. Structure 571 



b. Occurrence 573 



(11) Rhodoxanthin 573 



a. Structure 574 



b. Occurrence 574 



(12) Capsanthin 575 



a. Structure 575 



b. Occurrence 576 



c. Related Compounds 577 



(a) Perhydrocapsanthin 577 



(b) Capsanthol 577 



(c) Capsanthin Diesters 577 



(d) Capsanthinone 577 



(e) Anhydrocapsanthinone 578 



(f ) Capsanthylal 578 



(g) Capsylaldehyde 579 



(h) 4-Oxy-/3-carotenone Aldehyde 579 



(i) Capsanthin Epoxide 579 



( 13) Capsorubin 580 



(14) /3-Citraurin 580 



( 15) Myxoxanthin 581 



(16) Myxoxanthophyll 582 



(17) Rhodoviolascin and Related Pigments 583 



a. Rhodopin 583 



b. Rhodovibrin 584 



c. Rhodopurpurin 584 



(18) Aphanin and Aphanacene 584 



( 19 ) Gazaniaxanthin 585 



(20) Petaloxanthin 585 



(21) Miscellaneous Plant Pigments 586 



a. Eschscholtziaxanthin 586 



b. Spirilloxanthin 586 



c. Euglenarhodon 586 



4. Structure and Occurrence of Carotenoids of the C40 Series Primarilj' 



of Animal Origin 587 



( 1 ) Astacene 587 



(2) Astaxanthin 588 



a. Structure 589 



b. Occurrence 590 



