Customization: | Available |
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Powder: | Yes |
Customized: | Customized |
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Product name: |
Vitamin A Acid | Other Names: | Retinoic Acid |
CAS No.: |
302-79-4 | Appearance: | Yellow crystalline powder |
EINECS No. |
206-129-0 | Molecular Formula | C20H28O2 |
Grade Standard: |
Food Grade, Medicine Grade, Cosmetic Grade | Purity: | 99% |
Usage: |
Pharmaceuticals, for treatment of acne | Appearance: | Yellow crystalline powder |
Loss on drying:: |
Not more than 0.5% | Brand | TGY |
Heavy metals:: |
Not more than 0.002% | Identification:: | Conforms |
Vitamin A, chemical name as retinol, is the earliest vitamin being discovered. There are two types of Vitamin A: one is retinol which is the initial form of VA, it only exists in animals; another one is carotene. Retinol can be composited by β-carotene coming from plants.
Inside the body, under the catalysis of β-carotene-15 and 15′-double oxygenase, β-carotene is transformed into rational which is returned to retinol by the performance of rational reductase. Thusβ-carotene is also called a vitamin precursor.
Items |
Specification |
Result |
Description |
Light Yellow Crystal Powder |
Conforms |
Identification A: Thin-Layer Chromatographic B: Related substance C: Color reaction |
To conforms, EP To conforms, EP To conforms, EP |
Conforms |
Related substance ratios A300/A326 A350/A326 A370/A326 |
≤ 0.60, EP ≤ 0.54, EP ≤ 0.14, EP |
0.57 0.51 0.11 |
Retinol |
≤ 1.0% , EP ( or HPLC) |
n.d |
Acid Value |
≤ 2.0% , EP |
0.7 |
Peroxide value |
≤10.0, EP |
1.2 |
Heavy metals ( as pb) |
≤ 5 mg/kg, CP |
Less than 5 mg/kg |
Arsenic |
≤ 1 mg/kg, CP |
Less than 1 mg/kg |
Microbiological tests Total bacteria count Total mold& yeast count Coliforms Salmonella |
≤ 1000 cfu/g, GB/T 4789 ≤ 100 cfu/g, GB/T 4789 Less than 30 mpn 100G, GB/T 4789 n.d /10g, SNO332 |
Less than 10 cfu/g Less than 10 cfu/g Less than 30 mpn/100g n.d |
Assay |
≥1,800,000 IU/g, EP |
1,857,000 IU/g |
1. Prevent night blindness and vision loss; it's helpful to the treatment of eye diseases. (VA could promote the formation of photopigment inside eyes)
2. Anti-respiratory-infection
3. Immune-system enhancing
4. Promote early recovery.
5. Keep healthy of organizations or organ surface.
6. Remove senile plaques.
7. Promote healthy growth, strong muscularity, protect skin, hair, teeth, and teeth gums.
8. external use is helpful to the treatment of acne, pimple, skin surface ulcerations.
1. Retinol can effectively prevent obesity, keep women slim figure.
2. Retinol is used to promote bone growth, help teeth growth, regeneration.
3. Retinol can adjust the skin and cuticle metabolic effect, can be anti-aging, and to wrinkles.
4. Retinol can help protect the skin, mucous membrane from bacteria violations, healthy skin, prevent skin cancer.
5. Retinol also can prevent nyctalopia, eyesight decline, the treatment of various eye diseases, make the woman good eyes.
6. Retinol can reduce sebaceous overflow and make the skin elasticity, and at the same time, desalination spot, smooth skin.