China All-Trans Retinoic Acid Tretinoin Cream Isotretinoin Gel Used to Treat Acne CAS: 302-79-4, Find details about China Retinoic Acid, Tretinoin from All-Trans Retinoic Acid Tretinoin Cream Isotretinoin Gel Used to Treat Acne CAS: 302-79-4
Item | Spec. | Result | |
Appearance | A yellow or light-orange, Crystalline powder | Yellow crystalline powder | |
Identification | The IR adsorption spectrum should correspond with reference spectrum | conform | |
Should exhibits maximum absorption at 352mm | conform | ||
Loss on drying | ≤0.5% | 0.07% | |
Residue on ignition | ≤0.1% | 0.03% | |
Heavy metals | ≤0.002% | <0.002% | |
Related substances (Reporting threshold 0.05%) | Isotretinoin | ≤5.0% | <0.04% |
Impurity G | ≤0.2% | <0.05% | |
Single unknown impurity | ≤0.10% | RRT≈0.91<0.05% | |
Total impurities (Except Isotretinoin) | ≤0.5% | 0.01% | |
Residual solvents | Acetaldehyd | ≤15ppm | <15ppm |
Ethyl acetat | ≤5000ppm | 865ppm | |
Microbiological limit tests | Bacteria | ≤100CFU/g | <20CFU/g |
Molds and yeasts | ≤100CFU/g | <20CFU/g | |
Staphylococcus aureus and P.aeruginosa | Absent | Absent | |
Assay | 98.0%~102.0%(dried substance) | 99.6% | |
Conclusion | Conform to USP40 |
Azelaic Acid | 123-99-9 | 99% |
Ascorbyl Palmitate | 137-66-6 | 99% |
Kojic Acid | 501-30-4 | 99% |
Ethyl Ascorbic Acid | 86404-04-8 | 99% |
Monobenzone 4-Benzyloxyphenol | 103-16-2 | 99% |
Alpha Lipoic Acid | 62-46-4 | 99% |
R-Alpha Lipoic Acid | 62-46-4 | 99% |
Ferulic Acid | 1135-24-6 | 99% |
S-Acetyl-L-Glutathione | 3054-47-5 | 99% |
Hyaluronic Acid | 9004-61-9 | 99% |
Coenzyme Q10 | 303-98-0 | 99% |
Alpha Arbutin | 84380-01-8 | 99% |
Melatonin | 73-31-4 | 99% |
Kojic Dipalmitate | 79725-98-7 | 99% |
Retinoic Acid | 302-79-4 | 99% |
Arachidonic Acid | 506-32-1 | 99% |
L-Glutamic Acid | 56-86-0 | 99% |
Dl-Tryptophan | 54-12-6 | 99% |
Copper Peptide/GHK-CU | 49557-75-7 | 99% |
Y-Polyglutamic Acid | 25513-46-6 | 10,000-2,000,000 Dalton |
Sepiwhite | 175357-18-3 | 99% |
C60/Fullerene C60 | 99685-96-8 | 99% |
Ceramide | 100403-19-8 | 99% |