在线观看日韩一区二区三区|欧美天天视频|www.99国产|天堂网视频,制服丝袜先锋,欧美大胆色图,国产精品1区

[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!