Description

(3R,3'R,6'R)-7,8-Didehydro-β,ε-Carotene-3,3'-Diol is a specific stereoisomer of a xanthophyll carotenoid, commonly known as Lutein. This compound is valued for its potent antioxidant properties and its role as a natural pigment. It is a critical ingredient for manufacturers in the nutraceutical, food, and cosmetic industries seeking high-purity, bioavailable ingredients. Our supply ensures consistent quality and reliable global availability for your production needs.

Application

• Dietary Supplements & Nutraceuticals: A key active ingredient in eye health formulas, capitalizing on its role in supporting macular pigment density and filtering blue light.
• Functional Food & Beverage Fortification: Used to enhance the nutritional profile of products like dairy alternatives, juices, and health bars with a recognized bioactive compound.
• Natural Food Colorant: Imparts a stable yellow to orange hue in various food applications, appealing to clean-label market trends.
• Cosmetic & Skincare Formulations: Incorporated into anti-aging serums and creams for its antioxidant benefits, helping to protect skin from environmental oxidative stress.
• Animal & Aquaculture Feed: Added to poultry feed to improve yolk colouration and to pet food for nutritional enhancement.
• Pharmaceutical Intermediates: Serves as a high-purity starting material or reference standard in pharmaceutical research and development.

Basic Information

Product Name	(3R,3'R,6'R)-7,8-Didehydro-β,ε-Carotene-3,3'-Diol
CAS No.	27085-16-1
Molecular Formula	C₄₀H₅₆O₂
Molecular Weight	568.87 g/mol
Synonyms	Lutein; (3R,3'R,6'R)-Lutein; all-trans-Lutein; Xanthophyll; beta,ε-Carotene-3,3'-diol; E 161b; CI 75136; FloraGLO® Lutein (trade name)
EINECS	Contact for details

Quality Control

Our (3R,3'R,6'R)-Lutein is manufactured under strict quality systems. We provide material that meets relevant specifications for food, nutraceutical, and cosmetic applications. Quality is verified through comprehensive analytical testing including HPLC for assay and purity. Certificates of Analysis (COA) are available for every batch, and we can support compliance with standards such as USP-NF, FCC, and EU regulations for food additives.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C under an inert atmosphere such as nitrogen to prevent oxidation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Orange-red to yellow-orange free-flowing powder
Identification (HPLC/UV)	Conforms to reference standard
Assay (HPLC)	≥ 95.0% (total lutein isomers)
Purity (HPLC, main peak)	≥ 90.0% (all-trans-Lutein)
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Solvent Residues	Meets ICH guidelines

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.