草药中提取baicalin

Chinese name: huang qin gan English name: Baical Skullcap Root P.E Synonym: Beijia Ling, Baicalin Chemical name: β -D-Glucopyranosiduronic acid, 5,6-dihydroxy-4-oxo-2-phenyl-4H-1-benzopyran-7-yl Structure Molecular formula:C21H18O11 Molecular weight: 446.35 Physical and chemical properties: Yellow fruit of the melting point (m.p.) 223 . Pale yellow needle crystal (methanol), the melting point (mp) 223 225 , [α] 18 D +123 (C = 0.2, pyridine - water); soluble in NN-dimethylformamide, pyridine; Soluble sodium bicarbonate, sodium carbonate, sodium hydroxide and other alkaline solution, but in alkaline solution instability, graded dark brown Color; micro-soluble in hot acetic acid; difficult to dissolve in acid, acetic acid, acetone; almost insoluble in water, ethyl ether, benzene, chloroform, and so on. UVλMeOH max nm(logε):242 (4.12), 271(4.50), 310(4.22). Pharmacological: 1.anti-inflammatory, anti-allergic effect; 2.antibacterial activity; 3. buck, diuretic; 4.Baogan, Lidan, anti-oxidation; 5. antipyretic effect; 6.sedation; 7.hypolipidemic effect; 8.anti-platelet aggregation; 9.relaxation of blood vessels. Clinical practice: Main used to treat hepatitis, the acute jaundice acute with chronic hepatitis and jaundice have a certain effect; for urgent Of the biliary tract infection, such as for lead poisoning. Adverse reactions : In addition to individual injection administration in the stomach discomfort and diarrhea, no significant adverse reactions Specifications: Baicalin content (purity) HPLC: 30%;75%;85%;90%;95%;98%. Standards: Enterprise standards, export standards, national standards Packaging: 25kgs / Paper barrel, with two plastic bags. Storage: Confined, shading, the home kept a cool dry place Save period: 2 years.