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CAS No:4759-48-2
Shelf life:2 years
Storage conditions:Preserve in tight containers,preferably under an atmosphere of an inert gas,protected form light.
The detailed specifications are as below:

DescriptionYellow or orange crystalline powder
IdentificationThe IR absorption spectrum should correspond with reference spectrum Should exhibits maximum absorption at 354nm
Loss on dryingNot more than 0.5%
Residue on ignitionNot more than 0.1%
Heavy metalsNot more than 0.002%
Limit of tretinoinNot more than 1.0%
Assay98.0%~102.0%(Calculated on the dried basis)