quality is according to usp29
inspection by ir
melting point: about 196c
rotation rate: +98~+104
loss on drying: no more than 2.0%
ignition residue: no more than 0.1%
heavy metals: no more than 20ug/g
content: no less than 97.0%
clobetasol propionate (cas no.25122-46-7) is used for the treatment of various skin disorders including eczema, psoriasis, and lichen sclerosus. it is also used to treat several auto-immune diseases including alopecia areata, vitiligo and lichen planus (auto immune skin nodules).