Product Description Hot sale price tretinoin/Vitamin A acid/ retinoic acid / CAS 302-79-4  Introduction of Tretinoin                                                                                                   Tretinoin is a safe and effective topical treatment premature aging of the skin. Tretinoin has been proven to improved mild sun damage, fine wrinkles and discoloration if used as part of with a comprehensive skin care program.

Name	Tretinoin
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
Molecular Structure	:
Molecular Formula	C20H28O2
Molecular Weight	300.44
CAS Registry Number	302-79-4
EINECS	206-129-0
Melting point	179-184 ºC
Water solubility	insoluble

   Analysis of Tretinoin                                                                                                                                    

Item	Inspection Standard	Results
Appearance	Yellow to light orange crystalline powder	Conform
Identification	IR: Identical versus reference spectrum	Conform
	UV: Absorptivity at 352nm do not differ by more than 3.0%	Conform
Loss on drying	≤0.5%	0.05%
Residue on ignition	≤0.1%	0.07%
Heavy metals	≤0.002%	<0.002%
Related substacnes(Reporting threshold 0.05%)	Isotretinoin  ≤ 5.0%	Undetected
	Single unknown impurity ≤0.10%	<0.05%
Residual solvents	Acetaldehyde   ≤15ppm	<15ppm
	Hexane ≤29ppm	<11.6ppm(LOD)
	Dichioromethane ≤600ppm	<14.7ppm(LOD)
	Tetrahydrofuran ≤720ppm	<4.4ppm(LOD)
	Toluene ≤890ppm	<8.0ppm (LOD)
	Methanol ≤3000ppm	34ppm
	Ethanol ≤5000ppm	≤11.3ppm(LOD)
	Acetone ≤2000ppm	3ppm
	Ethyl Acetate ≤5000ppm	1348ppm
Total Bacterias	≤100CFU/G	<20CFU/G
Molds and Yeasts	≤100CFU/G	<20CFU/G
Assay	97.0%~103%	99.9%
Conclusion:Conform with USP34

   Packaging & Shipping                                                                                                   Packaging Details:1kg/Aluminum foil bag                                               25kg/Drum Delivery Details:within 3 days   Our Workshop                                                                                                                       FAQ                                                                                                                                            Q1: How to confirm the Product Quality before placing orders?   A: By sending you samples. Or if you have special requirement , we can prepare samples according to your requirement and send to you for your confirmation.   Q2: Can you supply free samples? A: Yes, we can provide some free sample, but the shipping cost should be on the customers’ account.   Q3: What’s the MOQ? A: For the high value product, our MOQ starts from 1g and generally starts from 10g. For other low value product, our MOQ starts from 100g and 1kg.   Q4: Is there any discount? A: Yes,  we always support with better price for larger quantity,   Q5: How to place order and make payment? A: You can send us your Purchase order(if your company has), or just send a simple confirmation by email and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly.   Q6: How do you treat quality complaint? A: All our products are strictly tested by QC, and confirmed by QA; unqualified material will not be released to customer.  In case any quality problem is confirmed to be caused by us, we will replace the goods or refund your payment immediately.   N&R INDUSTRIES,INC
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