Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Info
Name: Vitamin A
Alias: Retinol, all-trans-retinol
CAS No.: 68-26-8
Molecular Formula: C20H30O
Molecular Weight: 286.45
2. Physical & Chemical Properties
Physical Properties
- Appearance: Pale yellow crystalline solid or oily liquid
- Odor: Mild characteristic fishy fat odor
- Solubility: Insoluble in water; freely soluble in ethanol, ether, chloroform, vegetable oil, mineral oil
- Melting Point: 62–64 ℃
- Refractive Index nD2?: 1.547–1.555
- Hygroscopy: Non-hygroscopic
- UV characteristic: Strong absorption peak at 325 nm
- Viscosity: Low viscosity oily state after melting
Chemical Properties
- Molecular structure: Long-chain conjugated polyene alcohol, contains 4 conjugated double bonds and terminal hydroxyl group
- Oxidation sensitivity: Extremely easy to oxidize and inactivate under air, light and high temperature; needs antioxidant protection
- Photolysis property: UV light triggers cis-trans isomerization and degradation, loses physiological activity
- Esterification reaction: Hydroxyl can react with acetic acid, palmitic acid to form vitamin A acetate / palmitate
- Thermal stability: Stable under sealed low temperature; decomposes rapidly above 100 ℃
- Acid-base stability: Destroyed by strong acid; relatively stable in weak alkali and neutral oil system
- Compatibility: Compatible with vegetable oil, antioxidants (VE, BHT); incompatible with strong oxidants, strong mineral acid, heavy metal ions
3. Main Application Fields
1. Food & Nutritional Fortifier (Core Application)
- Infant formula milk powder, dairy products, cereal meal replacement powder vitamin fortification
- Functional health food raw material for eye protection, skin anti-aging nutritional supplements
2. Feed Additive
Feed-grade vitamin A raw material for livestock, poultry, aquaculture; promote animal vision development, epithelial tissue growth, improve immunity and egg-laying rate
3. Pharmaceutical API & Excipient
- Vitamin A oral soft capsules, eye ointment for dry eye, corneal epithelial repair
- Compound vitamin injection, multivitamin tablet raw material to treat vitamin A deficiency
4. Cosmetic Skin Care Raw Material
Anti-aging active ingredient (retinol); accelerate keratin metabolism, improve fine lines, dullness, acne rough skin, added to essence, cream, lotion
5. Biochemical Standard Reference
HPLC standard substance for vitamin content detection in food, medicine and feed
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 68-26-8 |
| Molecular Formula | C20H30O |
| Molecular Weight | 286.45 |
| Appearance | Pale yellow crystal/oily liquid |
| Assay | Pharma Grade ≥99.0%; Feed Grade 95.0%–102.0% |
| Moisture Content (KF) | ≤0.10% |
| Chroma (Pt-Co) | ≤100 |
| Heavy Metals (Pb) | Food/Pharma ≤10 ppm |
| Arsenic (As) | ≤2 ppm |
| Related Impurities | Total cis-isomers ≤3.0% |
| Bulk Package | Nitrogen-filled amber aluminum foil vacuum bag / amber plastic barrel |
| Storage Condition | Hermetic nitrogen-filled light-proof warehouse at 2–8℃; isolate sunlight, air, high temperature and oxidants |
| Transportation Rule | Light-proof, sealed, low-temperature transportation, avoid long-time exposure |
| Shelf Life | 24 months under intact nitrogen-sealed packaging |
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