Vitamin A Palmitate
Vitamins 2025-03-11
Molecular Formula: C36H60O2
Molecular Weight: 524.860
CAS No.: 79-81-2
Product name:Vitamin A Palmitate
It is an ester of retinol, a combination of retinol and palmitic acid, which is the main form of vitamin A in the epidermis. Vitamin A palmitate has been widely used in medicines and cosmetics.
Description
It is yellow or brown yellow oily liquid, sensitive to air, heat, light and humidity. It is insoluble in water, soluble in ethanol, soluble in ether, chloroform, acetone and grease.
Application
It can be absorbed through the skin, resist keratinization, stimulate the growth of collagen and elastin, and increase the thickness of the epidermis and dermis. Enhance skin elasticity, effectively eliminate wrinkles, promote skin renewal, and maintain skin vitality. Used in eye cream, moisturizing cream, repair cream, shampoo, conditioner, etc.
Specification
| Category | Parameters |
|---|---|
| Chemical Identity | |
| – IUPAC Name | Retinyl palmitate. |
| – CAS Number | 79-81-2. |
| – Molecular Formula | C₃₆H₆₀O₂. |
| – Molecular Weight | 504.87 g/mol. |
| Physical Properties | |
| – Appearance | Yellow to orange crystalline powder. |
| – Solubility | Insoluble in water; soluble in chloroform, ethanol, and oils. |
| – Melting Point | 62–64°C. |
| Quality Standards | |
| – Assay (USP/EP) | ≥97% (as all-trans retinol). |
| – Loss on Drying | ≤1.5%. |
| – Peroxide Value | ≤5 meq/kg. |
| – Heavy Metals | ≤10 ppm. |
| Applications | |
| – Food Fortification | Dairy products, cereals, infant formulas. |
| – Pharmaceuticals | Vitamin supplements; treatments for vitamin A deficiency. |
| – Cosmetics | Skincare formulations (antioxidant). |
| Storage | Cool (<25°C), dry, airtight container; protect from light. Shelf life: 24 months. |
| Regulatory Status | GRAS (FDA); USP/NF, EP, JP monographs. |
