男人天堂视频在线免费观看,亚洲视频入口,激情丁香五月,成人亚洲欧美日韩中文字幕,国产三片理论电影在线,欧洲成人在线,亚洲无码免费资源网

[product name] lutein

[active ingredient] lutein

[source] Marigold

[extract part] flower

[solubility] insoluble in water, soluble in hexane and other organic solvents, solubility ≥ 99%

[ingredient description] lutein, a kind of carotenoids, is also called plant lutein. It is known that there are many kinds of carotenoids in nature, only about many of which exist in human blood and tissues

[product specification] 5% 10% 20% 30% 40% 80% 90% HPLC

[color character] orange powder

The molecular formula is C40H56O2 and the relative molecular weight is 568.85.

For more details about this product, please call our customer service!