Molecular Formula | C17H26O11 |
Molar Mass | 406.38 |
Density | 1.58 |
Melting Point | 227-229℃ |
Boling Point | 607.2±55.0 °C(Predicted) |
Specific Rotation(α) | -132 (MeOH) |
Solubility | Soluble in water, methanol, ethanol, DMSO and other solvents. |
Appearance | White powder |
pKa | 11.88±0.70(Predicted) |
Storage Condition | Sealed in dry,Store in freezer, under -20°C |
Sensitive | Easily absorbing moisture |
MDL | MFCD03700750 |
Physical and Chemical Properties | White crystalline powder, soluble in water and methanol, derived from Ajuga decumbens Thunb, a plant of Ajuga genus in Labiatae. The whole grass, Scrophulariaceae Scrophulariaceae Scrophularia ningpoensis Hemsl. |
Safety Description | 24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
HS Code | 29389090 |
preparation | dried and milled whole grass (3.0) with acetone (20 L) at room temperature soak 48 h, filtrate decompression recovery solvent, the same method to extract three times, get 92.0 g Acetone Extract. The medicinal material residue was further soaked with methanol (12L) for 72h, and the filtrate was extracted twice under reduced pressure to obtain 222.6 g of methanol extract. The Acetone Extract and methanol extract were combined, dissolved in 90% methanol, and extracted with n-hexane and dichloromethane successively to obtain 71.0g of n-hexane extract, 30.4 g of dichloromethane extract and 197.5g of water fraction. The water fraction (197.5 g) was passed through D101 macroporous resin and eluted sequentially with water, 20%, 40%, 60% and 80% ethanol-water to obtain water-eluting fraction Fr.W1 (about 160 g), 20% ethanol fraction Fr.W2(13.2g), 40% ethanol fraction Fr.W3(15.0g), 60% ethanol fraction Fr.W4 (about 3.0 g) and 80% ethanol fraction Fr.W5 (about 2.0g). Fr.W2 was subjected to Sephadex LH-20 column chromatography eluting with 50% methanol to obtain 8 fractions (Fr. W2a-w2h). Fr.W2d compound l(16.4 mg) was purified by silica gel column chromatography and semi-preparative HPLC. |
biological activity | 8-O-Acetylharpagide is a kind of iridoid compound isolated from Ajuga reptans, which has anti-tumor, anti-virus, antibacterial and anti-inflammatory activity. 8-o-ac etylharpagide is also biologically active on isolated smooth muscle of guinea pigs. |
Use | acetyl-halabin has the effects of heat-clearing and detoxifying, cough-relieving and expectorant, nourishing tendons and blood. for content determination/identification/pharmacological experiments. Pharmacological effects: Heat-clearing and detoxifying, cough and expectorant, nourishing tendons and blood |