The main component of Forsythia
Modern research Main components Contains Forsythol; Phillyrin, Phillygenin; Oleanolic acid, Betulinic acid, Ursolic acid, Ginseng (Pinoresinol), sterol compound C49H70-80O6. Mattressinoside. It also contains a variety of hydrocarbons, aldehydes and ketones, alcohol ester ethers volatile components: α-Pinene, Camphene, β-Pinene, p-Cycloprene (p-Cymene), Limonene, γ-Terpinene, β-Phellandrene, Myrcene, β-Ocimene; Camphor, Geranial; Borneol, α-Terpineol, Safrole, Linalool, Terpinen-4 4-ol), Norlapa-chol, and coumarin, rutin, etc. Physical and chemical identification 1. Take the product powder 1g, add 70% ethanol 10ml hot dip, leaching solution evaporated. The residue was dissolved in 1 ml of glacial acetic acid, poured into a small test tube, and 1 ml of sulphuric acid was added along the wall of the tube. A magenta ring appeared between the two liquid layers. (Check the triterpene soap) 2. Take the product powder 0.5g, add ether 5ml, shake 5 minutes, filtered, the filtrate was placed in a small test tube, add 3 drops of 7% hydroxylamine hydrochloride methanol solution, 20% potassium hydroxide methanol solution 3 drops, in the water bath micro-heat 2 minutes, let cool, plus 1% hydrochloric acid, so that was slightly acidic, plus 1% ferric chloride ethanol solution 2 drops, was purple. (Check Bean Extract) 3. Thin layer chromatography to take the product powder 3g, add water 20ml, boiling for 30 minutes, add 6mol/L hydrochloric acid, adjust the pH to 2, that is extracted with ether 20ml, recover the residue after ether, and then dissolved in ethanol 0.5ml as Test solution. Another oleanolic acid formulated as a reference solution. The above two solutions were pipetted on the same silica gel H 1% cmC plate, developed with chloroform-methanol (20:1), developed, removed, dried, sprayed with 10% sulfuric acid, and baked at 110°C. In 10 minutes, the same gray-black spots appear in the chromatogram of the test sample at the position corresponding to the chromatogram of the reference substance. Or iodine smoked, the same yellow-brown spot. Progress in compositional analysis: slightly Electronics Products,Electronic Parts ,Electronic Component ,Electronic Items ChangChun E-vida Technology Co.,ltd , https://www.evidatech.com