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[Chinese name] 玉米黃質

[English name] zeaxanthin

[plant source] floccus of marigold in Compositae

[plant origin] Xinjiang and Yunnan

[product specification] corn yellow 10%

[detection method] UV, HPLC

[molecular formula] C40H56O2

[molecular weight] 568.87

[CAS NO] 144-68-3

[product properties] fat soluble powder or oil-like substance, a derivative of β carotene, soluble in ether, petroleum ether, acetone, ester and other organic solvents, insoluble in water, can not be converted into VA in vivo, no VA activity, poor light and thermal stability, especially light has great influence on zeaxanthin; The stability of fe3+ and al3+ is also poor, but it is stable for other ions, acids, bases and reducing agents Na2SO3.