Description

(2R,2'R,3R,3'R)-β,β-Carotene-2,2',3,3'-Tetrol is a high-purity, stereochemically defined carotenoid derivative, also known as zeaxanthin. This compound matters as a potent natural antioxidant and colorant, offering significant value in applications demanding precise molecular structure for efficacy and safety. It is essential for manufacturers in the nutraceutical, food, and cosmetic industries seeking premium-grade ingredients for vision health supplements, functional food fortification, and advanced skincare formulations.

Application

• Dietary Supplements & Nutraceuticals: A key active ingredient in vision support formulas, particularly for macular health, leveraging its antioxidant properties.
• Functional Food & Beverage Fortification: Used as a natural colorant and nutritional enhancer in products like juices, dairy alternatives, and health bars.
• Cosmetics & Personal Care: Incorporated into anti-aging serums, creams, and lotions for its skin-protective antioxidant activity and potential to improve skin tone.
• Animal Nutrition (Feed Additives): Added to poultry feed to enhance egg yolk pigmentation and to aquaculture feed for fish coloration.
• Pharmaceutical Research: Serves as a reference standard and an intermediate in the synthesis of more complex carotenoids and retinoids.
• Clinical Nutrition: Used in specialized medical food products designed for ocular health and antioxidant support.

Basic Information

Product Name	(2R,2'R,3R,3'R)-β,β-Carotene-2,2',3,3'-Tetrol
CAS No.	29307-44-6
Molecular Formula	C₄₀H₅₆O₄
Molecular Weight	600.88 g/mol
Synonyms	Zeaxanthin; (3R,3'R)-Zeaxanthin; all-trans-Zeaxanthin; β,β-Carotene-3,3'-diol; (3R,3'R)-β,β-Carotene-3,3'-diol; Vegetable lutein; Anchovyxanthin; Xanthophyll
EINECS	249-584-4

Quality Control

Our (2R,2'R,3R,3'R)-β,β-Carotene-2,2',3,3'-Tetrol is produced and tested under strict quality management systems. We offer grades suitable for food, nutraceutical, and cosmetic applications, with specifications aligning with industry standards such as FCC and USP where applicable. Every batch is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and safety parameters, ensuring full traceability and compliance for your regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) or under inert atmosphere for long-term stability, as the material is light-sensitive, easily oxidized, and hygroscopic. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Orange to red powder
Identification (HPLC/UV)	Conforms to reference standard
Assay (HPLC)	≥95.0% (all-trans-Zeaxanthin)
Specific Rotation	Contact for details
Heavy Metals (as Pb)	≤10 ppm
Residual Solvents	Meets ICH guidelines
Total Plate Count	≤1000 cfu/g
Yeast & Mold	≤100 cfu/g

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