USD $99.00-99.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $8.20-8.80 / Kilogram
USD $8.20-8.80 / Kilogram
USD $4.50-5.00 / Liter
USD $1.00-10.00 / Kilogram
retinol palmitate
description:
product name: vitamin a acetate
synonyms: retinol acetate
cas no. 127-47-9
einecs: 204-844-2
molecular formula: c22h32o2
molecular weight: 328.49
specification: 325000iu/g
appearance: light yellow powder
vitamin a acetate, chemical name as retinol acetate, 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 ratinal which is returned to retinol by the performance of ratinal reductase. thus β-carotene is also called as vitamin precursor.
specification:
items |
specification |
results |
solubility |
dispersible in cool water forming a milky emulsion |
qualified |
appearance |
light yellow, free-flowing powder |
qualified |
content |
≥500,000iu/g |
558,000iu/g |
loss on drying |
≤5.0% |
4.9% |
absorbance ratio |
≥0.85 |
qualified |
seive analysis |
100% through 40# seive(us) ≥90% through 60# seive(us) ≥45% through 100# seive(us) |
100% 96.0% 76% |
microbiological spec. |
||
tatal plate count |
≤1000cfu/gm |
<10cfu/gm |
mold and yeast |
≤100cfu/gm |
<10cfu/gm |
e.coli |
negative (in 10g) |
negative |
salmonella |
negative (in 25g) |
negative |
conclusion: complies with the requirement of usp34 standard |
function:
-vitamin a acetate can effectively prevent obesity, keep women slim figure.
-vitamin a acetate is used to promote bone growth, help teeth growth, regeneration.
-vitamin a acetate can adjust the skin and cuticle metabolic effect, can be anti-aging, and to wrinkles.
-vitamin a can help protect skin, mucous membrane from bacteria violations, healthy skin, prevent skin cancer.
-vitamin a acetate also can prevent nyctalopia, eyesight decline, the treatment of various eye disease, make the woman good eyes.
-vitamin a acetate can reduce sebaceous overflow and make the skin elasticity, and at the same time, desalination spot, smooth skin.