Centella asiatica glycoside 16830-15-2 traditional Chinese medicine reference substance

Snow grass glycoside, also known as snow grass glycoside, is a light yellow light brown powder; Odorless, bitter in taste, slightly hygroscopic. Has a promoting effect on wound healing. Used for treating trauma, surgical trauma, burns, keloids, and scleroderma.

Identification: (1) Take about 2mg of the product, place it in a test tube, add 1ml of acetic anhydride, shake well, and slowly add 1ml of sulfuric acid along the wall of the test tube,
A purple red ring appears at the junction of two liquids.
⑵ Take the product, as well as the reference standards of centella asiatica glycoside and hydroxycentella asiatica glycoside, and add ethanol to prepare a solution containing 10mg per 1ml each
Liquid, used as the test solution and control solution. According to the thin-layer chromatography method, extract each of the three solutions mentioned above
5μl， Place them on the same silica gel G thin layer plate separately, using the upper layer solution of n-butanol ethyl acetate water (4:1:5) as the spreading agent
Open, unfold, remove, air dry, spray with acetic anhydride sulfuric acid anhydrous ethanol (1:1:10) solution, and dry at 105 ℃ for about 5 minutes
The clock. In the chromatogram of the test sample, two identical blue brown spots appear at the corresponding positions to the chromatogram of the control sample.
[Inspection] Dry weight loss: Take this product and dry it at 105 ℃ with a constant weight. The weight loss should not exceed 10.0%.