Tretinoin TRETINOIN Tretinoin
≥98.0% bp2009
Description |
Yellow crystalline powder |
Identification |
The IR absorption spectrum should correspond with reference spectrum |
|
Should exhibits maximum absorption at 352nm |
Loss on drying |
Not more than 0.5% |
Sulphated ash |
Not more than 0.1% |
Heavy metals |
Not more than 0.002% |
Related substances: Isotretinoin Unspecilfied impurities Total impurities |
0.5% MAX 0.2% MAX 1.0% MAX |
Assay |
98.0%~102.0%( Calculated on the dried basis) |
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