Original plant:Rheum palmatum root
CAS number:518-82-1
Assay (by HPLC):50% 95% 98%
Molecular Formula: C15H10O5
Molecular Weight: 270.23
Solubility: Soluble in alcohol,and slightly in the Ether, Chloroform,Benzene, not dissolving in water. It reveals the cherry-red in the caustic alkali aqueous solution, the sodium carbonate solution or the ammonia solution.
Pharmacology:Emodin performances very strong bacteriostasis properties, it functions mainly via inhibiting the biosynthesis of nucleic acid and bacteria's breath process.