![](http://www.alamy.com/thumbs/6/465F9CBE-745B-456D-9A23-2B515B34FB93/RFPEBN.jpg)
. Carotenoids. Carotenoids; Carotenoids. Crocetin dimethyl ester from chloroform-ethanol (top) Crocetin from pyridine (bottom) '"/'V X "^^ / Bixin from ethvl acetate Azafrin metliyl ester from toluene (top) Azafrin from toluene (bottom). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Karrer, Paul, 1889-1971; Jucker, Ernst, 1918-. New York, Elsevier Pub. Co.
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Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity