Bastaxanthin structure

Hertzberg S, Ramdahl T, Johansen JE, and Liaaen-Jensen S. 1983. Carotenoid sulfates 2. Structural elucidation of bastaxanthin. Acta Chemica Scandinavica B37 267-280. 

In some cases, other spectroscopic methods can be used to identify pigments on the basis of particular structural features. For instance infrared (IR) spectroscopy was used to reveal the presence of an allelic group in the carotenoids fucoxanthin, alloxanthin, and bastaxanthin (Britton et al., 1995). IR spectroscopy was also used to establish the details of the light-induced oxygen-dependent bleaching of the food colorant chlorophyllin (Bertrand et al., 2004 Chenery and Bowring, 2003 Salin et al., 1999). 

Since the first reported naturally occurring carotenoid sulphate by our group in 1981 [67], several examples have been reported from marine sponges, echinoderms and bacteria [68], The first structure established was for bastaxanthin C (27) [69]. The naturally occurring mono- and disulphates so far known contain either... 

Hertzberg, S., T. Ramdahl, J.E. Johansen, and S. Liaaen-Jensen Carotenoid Sulfates. 2. Structural Elucidation of Bastaxanthin. Acta Chem. Scand. B 37, 267... 

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