Description

Zeaxanthin Diacetate is a lipid-soluble, esterified derivative of the naturally occurring carotenoid zeaxanthin. This compound is valued for its enhanced stability and bioavailability compared to its free form, making it a critical ingredient for advanced nutraceutical and functional food formulations. It is primarily sought after by manufacturers in the dietary supplement, food and beverage, and cosmetic industries seeking to incorporate a potent, stable antioxidant and colorant.

Application

• Dietary Supplements & Nutraceuticals: A key active ingredient in eye health formulas, capitalizing on its role in the macular pigment to support visual function and protect against blue light.
• Functional Food & Beverage Fortification: Used to add antioxidant properties and a stable yellow-to-orange hue to products like juices, dairy alternatives, and health bars.
• Cosmetics & Personal Care: Incorporated into skincare serums and creams for its antioxidant benefits, helping to protect the skin from environmental oxidative stress.
• Animal Nutrition (Feed Additives): Applied in poultry feed to enhance the yolk color of eggs and in aquaculture to improve the flesh coloration of farmed fish like salmon.
• Pharmaceutical Intermediates: Serves as a precursor or an active pharmaceutical ingredient (API) in specialized ophthalmic and therapeutic formulations.
• Natural Colorants: Provides a vibrant, natural alternative to synthetic dyes (e.g., Yellow No. 5, Yellow No. 6) in various food and cosmetic applications.

Basic Information

Item	Detail
Product Name	Zeaxanthin Diacetate
CAS No.	16638-61-2
Molecular Formula	C₇₂H₁₀₀O₄
Molecular Weight	1053.57 g/mol
Synonyms	Zeaxanthin dipalmitate (common misnomer); All-Trans-Zeaxanthin Diacetate; 3,3'-Dihydroxy-β,β-carotene-3,3'-diacetate; β,β-Carotene-3,3'-diol, diacetate; (3R,3'R)-β,β-Carotene-3,3'-diol diacetate; Xanthophyll diacetate; Lutein diacetate isomer; Food Orange 8 (when used as a colorant)
EINECS	240-699-6

Quality Control

Our Zeaxanthin Diacetate is produced and tested under strict quality management systems. Each batch is analyzed to ensure it meets high-purity standards, typically exceeding 95% by HPLC. We provide comprehensive Certificates of Analysis (COA) detailing assay, isomer profile, and impurity limits. Production can be aligned with relevant standards for nutraceutical (USP, FCC) and food-grade applications upon request.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen) at controlled room temperature (15-25°C) to minimize oxidation and degradation. Keep the container in a cool, dry, and well-ventilated area away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Reddish-orange to orange crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0% (Total Zeaxanthin Diacetate)
All-Trans Isomer Content	≥ 90.0% of total assay
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Solvent Residues (GC)	Meets ICH guidelines

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