Description

β,β-Carotene-4,4'-Diol is a key carotenoid diol derivative, also widely known as zeaxanthin. This compound is valued for its potent antioxidant properties and its role as a natural colorant and nutrient. It is essential for manufacturers in the nutraceutical, food, and cosmetic industries seeking high-purity, functional ingredients. Our supply ensures consistent quality and reliable availability for global B2B partners.

Application

• Nutraceutical & Dietary Supplements: A primary ingredient in eye health formulas and antioxidant blends.
• Food & Beverage Fortification: Used as a natural colorant (yellow to red hues) and functional nutrient in fortified foods and drinks.
• Cosmetics & Personal Care: Incorporated into skincare products for its antioxidant benefits and skin-conditioning properties.
• Animal Feed & Aquaculture: Added to feed to enhance the coloration of poultry, fish, and crustaceans, and to support animal health.
• Pharmaceutical Intermediates: Serves as a critical starting material or intermediate in the synthesis of specialized pharmaceutical compounds.
• Research & Development: Used as a standard or reagent in biochemical and nutritional studies.

Basic Information

Product Name	β,β-Carotene-4,4'-Diol
CAS No.	29065-03-0
Molecular Formula	C₄₀H₅₆O₂
Molecular Weight	568.87 g/mol
Synonyms	Zeaxanthin; (3R,3'R)-β,β-Carotene-3,3'-diol; All-trans-Zeaxanthin; Anchovyxanthin; Xanthophyll; Food Orange 8; CI 75135; E161h
EINECS	249-416-0

Quality Control

Our β,β-Carotene-4,4'-Diol is produced and tested under strict quality management systems. We offer grades suitable for food, nutraceutical, and cosmetic applications, with specifications that can meet relevant purity standards. Certificates of Analysis (COA) documenting identity, purity, and safety parameters are provided with every shipment to ensure full traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at temperatures between 2°C and 8°C (refrigerated) or as specified for the specific grade. This product is easily oxidized and should be handled under an inert atmosphere when appropriate for long-term stability.

Specification

Item	Specification
Appearance	Orange to red powder or crystals
Identification (HPLC/UV)	Conforms to standard
Assay (HPLC)	≥ 95.0% (All-trans Zeaxanthin)
Loss on Drying	≤ 2.0%
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.