Lutein has the characteristics of "natural", "nutritious" and "multifunctional", and can be widely used in food, health products, cosmetics, pharmaceuticals and feed additives.
Uses
As a dietary carotenoid, it does not have the efficacy of vitamin A. It increases the pigment concentration of macula in the eyes and may improve eyesight.
| Property | Value |
| Melting Point | 195 °C |
| Specific Rotation | 18Cd +165° (c = 0.7 in benzene) |
| Boiling Point | 572.66°C (rough estimate) |
| Density | 0.9944 (rough estimate) |
| Refractive Index | n20/D1.361-1.363 |
| Flash Point | 269.1±27.5 °C |
| Storage Condition | -20°C |
| Solubility | Chloroform (slightly soluble), Dichloromethane (slightly soluble), Methanol (slightly soluble, heated, ultrasonicated) |
| pKa | 14.61±0.70(Predicted) |
| Form | Solid |
| Color | Red to deep red |
| Optical Rotation | [α] 656.3 +16220 (c 0.2, CHCl3) |
| Biological Source | rabbit |
| Maximum Wavelength (λmax) | λ: 441-451 nm Amax |
| Merck | 13,10120 |
| BRN | 2068547 |
| Stability | Sensitive to light and temperature |
| InChIKey | K BPHJBAIARWVSC-RGZRNHPSA-N |
| LogP | 11.524 (est) |
| CAS Database | 127-40-2(CAS DataBase Reference) |
| EPA Chemistry Info | .beta.,.epsilon.-Carotene-3,3'-diol, (3R,3'R,6'R)- (127-40-2) |