- Description
- Reviews
- Shipping & Returns
Product Name: Tretinoin or Vitamin A Acid
CAS#: 302-79-4
Molecular Formula C20H28O2
Molecular Weight 300.44
Synonyms 3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenoic acid; all-trans-Retinoic acid; Vitamin A acid.
Character: Yellow acicular crystals, trans tretionoirum mainly. 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.
Quality index: Conform to CP2005/BP2002/USP26
Melting point: About 182 centigrade
Loss on drying: 0.5%
Heavy metals: 0.002%
Content: 98~102%
Function: Both tretionirum and Vitamin A can stimulate skin growth and keep epidermic normal. Howerver, 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.
* Delivery Time.
We need 1-2 days to process your order before shipping.There are two shipping methoed. Fast Delivery: The delivery time for US, European countries the delivery will take 3-5 days.Slow Delivery: The delivery time for US, European countries the delivery will take 10-15 days.
* Tracking information.
After we ship package, customer receive automatic email with tracking details.
* Lost Package Policy.
If a package did not arrive in 4 weeks after the shipping date, then this package is treated as Lost. In this case a new package will be shipped to the customer provided we are able to give the same items as those purchased by the customer. If we are not able to provide the same items to substitute the lost ones we will either propose to the customer similar items or refund their cost as it will be mutually agree with the customer. If one or more items neither the same nor similar are available to be shipped, the customer can request to cancel the order entirely, thus the total cost of the order including shipping and handling cost will be fully refunded.
