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CAS NO: |
CAS. NO. : 302-79-4 |
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Assay: |
98~102% |
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Appearance: |
Yellow acicular crystals ,trans tretionoirum mainy |
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Melting point: |
180--182¡ã |
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Loss on drying: |
0.5% max |
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Heavy metals: |
0.002% max
Easily dissolved in chloroform, dichoromethane and
dissolved in carbinol, ethanol and also dissolved in
vegetable oil and lipid. Instability exposed in light
and caloricr, easily absorbing moisture and
metamorphosed in water. |
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Character: |
Both tretionirum and Vitamin A can stimulate skin growth
and keep epidermic normal. However, to spread on part of
skin has no actual effect. Taking orally vitamin A is
benefit to treat skin disorders. Applying vitamin A acid
to skin partly could produce intensive pharmacological
action. External use can slow down skin aging process
for solarization, remove tiny wrinkles, and reduce skin
roughness, so skin will become ruddy. |
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Side-effect and notice : |
Don¡¯t spread it in thin skin. Proper lower concentration
(no more then 0.025%)can avoid such reaction as scalp
off, Scorching fever and erythema which is caused by
drastic dilation of blood vessel. Please insist on using
the product and you will get preferable curative effect
when you fing such normal reaction as erythema, scorch
fever and hypodynia. Discontinue it and apply some
oleiferous skin-care products to the skin site, if the
reaction is severe. Cold cream concentration less than
0.025,show some effect upon treating acne and skin
roughness kept cool and closed . |
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Package and Storage : |
1kg/bag, aluminum bag. Closed, shady and cool, drying
place and protected from light. |
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Lead time: |
within 7 days upon receipt of your order |
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