Description

(3R,3'S,6'R)-B,E-Carotene-3,3'-Diol is a specific stereoisomer of the carotenoid lutein, known for its potent antioxidant properties and role as a natural colorant. This high-purity compound is critical for applications requiring precise molecular configuration to ensure optimal bioavailability and efficacy. It is primarily sought by manufacturers in the nutraceutical, food, and cosmetic industries for its health-promoting benefits and stable pigmentation.

Application

• Dietary Supplements & Nutraceuticals: A key active ingredient in formulations targeting eye health, skin protection, and cognitive function due to its selective accumulation in the macula.
• Functional Food & Beverage Fortification: Used as a nutritional enhancer and natural colorant in products like juices, dairy alternatives, and health bars.
• Cosmetics & Personal Care: Incorporated into anti-aging serums, creams, and sun care products for its antioxidant and blue light filtering properties.
• Animal & Aquaculture Feed: Added to poultry feed to enhance egg yolk color and to pet food for nutritional enrichment.
• Pharmaceutical Intermediates: Serves as a chiral building block or reference standard in the research and development of new therapeutic agents.
• Clinical Research Materials: Used as a high-purity standard in studies investigating carotenoid metabolism, bioavailability, and health outcomes.

Basic Information

Product Name	(3R,3'S,6'R)-B,E-Carotene-3,3'-Diol
CAS No.	52842-48-5
Molecular Formula	C₄₀H₅₆O₂
Molecular Weight	568.87 g/mol
Synonyms	Lutein (specific stereoisomer); (3R,3'S,6'R)-Lutein; all-E-Lutein; Xanthophyll; beta,ε-Carotene-3,3'-diol; Vegetable lutein; FloraGLO® Lutein (related); Occuguard® (related)
EINECS	Contact for details

Quality Control

Our (3R,3'S,6'R)-B,E-Carotene-3,3'-Diol is produced under strict quality management systems. Each batch is tested to ensure it meets stringent specifications for identity, purity, and stereochemical composition. We provide comprehensive Certificates of Analysis (COA) detailing results from HPLC, UV-Vis, and chiral analysis. Our quality commitment aligns with standards relevant for nutraceutical (FCC, USP) and cosmetic ingredient applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C to minimize oxidation. The container should be kept in a cool, dry, and well-ventilated area. Avoid prolonged exposure to room temperature and humidity.

Specification

Item	Specification
Appearance	Orange-red to yellow-orange powder
Identification (IR)	Conforms
Identification (HPLC)	Conforms to reference standard
Assay (HPLC)	≥95.0% (all-E-Lutein)
Stereoisomeric Purity	≥90.0% (3R,3'S,6'R)-isomer
Solvent Residues	Meets ICH guidelines
Heavy Metals	<10 ppm
Total Plate Count	<1000 CFU/g

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