NATURALLY OCCURRING CAROTENOIDS 35 



CHo CXlo ^Ho CHq 



\V \V 



C CH3 CH3 CH3 CH3 c 



/\ II II /\ 



CH„ C-CH=CH-C=CHCH=CH-C=CHCH=CHCH=C-CH=CHCH=C-CH=CH-C CH, 



I II 11 I 



HOCH C-CHs HjC-C CHOH 



\ / Astaxanthin \^ / 



CO CO 



CH3 CH3 CH3 CH3 



X f- r r r X 



CH„ C-CH=CH-C=CHCH=CH-C=CHCH=CHCH=C-CH=CHCH=C-CH=CH-C CH, 



I II II I 



CO C-CH3 HjC-C CO 



\/^ .. ^/ 



CO Astacene CO 



CHo CHo 



\V 



C CH3 CH3 CH3 CH3 



dn, C-CH=CH-C=CHCH=CH-C=CHCH=CHCH=C-CH=CHCH=C-CH=CH-CH COOH 



I II II I 



CHa C-CHj HgC-C CH 



\ y Torularhodin (?) \ /' 



CH, CH 



\V 



C OH CH, CH, CH3 



y\/ I I I 



CH, C-CH=CH-C=CHCH=CH-C=CHCH=CHCH = C-CH=CH-COOH 



I I 



CHg C' C'H3 



^ Azafrin 



Ch„ oh 



CHo CH, 



\/ 



C Clio CXI3 CHj CH3 



/\ I I II 



CHj C- CH=CH- C=CHCH=CH- C=CHCH=CHCH=C- CH=CHCH=C- CHO 



HOCH C-CHj 



/3-Citraurin 



CH, 



