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Title Examination of Pharmacy Pharmacist in charge: the solubility of phenylpr
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Coumarin free more than a well-crystallized, most with a fragrance. Small molecules are volatile, that with the steam distillation, and to sublimation. The fragrance-free glycosides and volatile are the majority, can not be sublimated. Free coumarin generally insoluble or hardly soluble in cold water, soluble in boiling water, soluble in methanol, ethanol, chloroform, ethyl ether; coumarin glycosides can dissolve in water, methanol, ethanol, insoluble in ether, benzene and a very of small organic solvents.