Description

Retinyl Stearate is a fat-soluble ester of retinol (vitamin A) and stearic acid, offering enhanced stability for various formulations. This compound is valued for its role as a direct source of vitamin A activity, crucial for cellular growth and differentiation. It is primarily utilized by manufacturers in the pharmaceutical, nutraceutical, and high-end cosmetic industries seeking a stable, oil-soluble vitamin A derivative.

Application

• Pharmaceutical Formulations: Used as an active ingredient in oral supplements, capsules, and liquid multivitamin preparations for vitamin A supplementation.
• Nutraceutical & Dietary Supplements: Incorporated into softgel capsules, functional food oils, and wellness products to deliver bioavailable vitamin A.
• Cosmetic & Personal Care: A key active in anti-aging serums, creams, and lotions for its skin-renewing and antioxidant properties.
• Animal Nutrition (Premixes): Added to vitamin premixes for poultry, swine, and aquaculture feed to support vision, growth, and immune function.
• Research & Development: Serves as a standard or reagent in biochemical research and analytical method development.

Basic Information

Product Name	Retinyl Stearate
CAS No.	631-87-8
Molecular Formula	C36H60O2
Molecular Weight	524.86 g/mol
Synonyms	Vitamin A stearate; Retinol stearate; all-trans-Retinyl stearate; Stearic acid, retinol ester; Axerophthyl stearate; 3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraen-1-ol stearate
EINECS	211-174-5

Quality Control

Our Retinyl Stearate is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay, identification, and impurity profiling, to ensure it meets stringent purity requirements. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee traceability and compliance with customer and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen) in a cool, dry place at 2-8°C (refrigerated) or as specified on the label. This product is strictly light-sensitive and easily oxidized; prolonged exposure to air, heat, or light will lead to degradation.

Specification

Item	Specification
Appearance	Yellow to pale yellow powder or crystalline solid
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
All-trans-Retinyl Stearate	≥ 90.0% of total assay
Related Substances (HPLC)	Total impurities ≤ 5.0%
Solubility	Soluble in oils and organic solvents; insoluble in water

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