99% up Tretinoin Retinoic Acid Vitamin A acid for cosmetic use CAS NO.302-79-4

Name: 99% up Tretinoin Retinoic Acid Vitamin A acid for cosmetic use
SKU: 302-79-4
Availability: InStock

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Description of TRETINOIN

Retinoic Acid ,Tretinoin , Vitamin A acid
1.CAS : 302-79-4
2.Standard:USP34.GMP/DMF
3.Purity: 99%
4.Usage:anti-acne

Tretinoin is a yellow to light orange crystalline

powder. It melts at about 182 °C.

C20H28O2 Mr 300.4

CAS No.: 302-79-4

EINECS: 206-129-0

Chemical name:

(all-E)-3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenoic acid

Solubility

Tretinoin is soluble in chloroform and solutions

of alcoholic sodium hydroxide, slightly soluble in ethanol, isopropanol and a number

of long-chain fatty acids and their esters, andpractically insoluble in water.

3. Certificate of Analysis of TRETINOIN

ITEMS	SPECIFICATION	RESULTS
Description	Yellow to light-orange crystalline powder	Yellow crystalline powder
Solublity	Slightly soluble in alcohol, in chloroform, and in methanol; insoluble in water.
Identification: A B	UV IR	Complies Complies
Loss on drying	Not more than 0.5%	0.2%
Residue on ignition	Not more than 0.1%	0.03%
Heavy metals	Not more than 0.002%	<0.002%
Limit of isotretinoin	Not more than 5.0%	0.1%
Assay	98.0~102%	99.5%

4. Usage of TRETINOIN: For treatment of acne; for the manufacture of exclusively topical preparations.