Physicochemical Properties
| Molecular Formula | C21H20O11 |
| Molecular Weight | 448.3769 |
| Exact Mass | 448.1 |
| CAS # | 22007-72-3 |
| PubChem CID | 5748601 |
| Appearance | White to yellow solid powder |
| Density | 1.7±0.1 g/cm3 |
| Boiling Point | 801.1±65.0 °C at 760 mmHg |
| Melting Point | 174-175℃ (methanol ) |
| Flash Point | 283.8±27.8 °C |
| Vapour Pressure | 0.0±3.0 mmHg at 25°C |
| Index of Refraction | 1.755 |
| LogP | 1.72 |
| Hydrogen Bond Donor Count | 7 |
| Hydrogen Bond Acceptor Count | 11 |
| Rotatable Bond Count | 3 |
| Heavy Atom Count | 32 |
| Complexity | 741 |
| Defined Atom Stereocenter Count | 5 |
| SMILES | C[C@H]1[C@@H]([C@H]([C@H]([C@@H](O1)OC2=CC(=C3C(=C2)OC(=C(C3=O)O)C4=CC(=C(C=C4)O)O)O)O)O)O |
| InChi Key | QPHXPNUXTNHJOF-XNFUJFQVSA-N |
| InChi Code | InChI=1S/C21H20O11/c1-7-15(25)17(27)19(29)21(30-7)31-9-5-12(24)14-13(6-9)32-20(18(28)16(14)26)8-2-3-10(22)11(23)4-8/h2-7,15,17,19,21-25,27-29H,1H3/t7-,15-,17+,19+,21-/m0/s1 |
| Chemical Name | 2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-7-[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxychromen-4-one |
| Synonyms | Vincetoxicoside B |
| HS Tariff Code | 2934.99.9001 |
| Storage |
Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: This product requires protection from light (avoid light exposure) during transportation and storage. |
| Shipping Condition | Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs) |
Biological Activity
| References |
[1]. Chemical constituents from the rhizome of Polygonum paleaceum and their antifungal activity. J Asian Nat Prod Res. 2017 Jan;19(1):47-52. |
| Additional Infomation |
Quercetin 7-O-alpha-L-rhamnopyranoside is a quercetin O-glycoside that is quercetin attached to a alpha-L-rhamnopyranosyl moiety at position 7 via a glycosidic linkage. It has a role as a metabolite. It is an alpha-L-rhamnoside, a monosaccharide derivative, a tetrahydroxyflavone, a quercetin O-glycoside and a member of flavonols. It is functionally related to an alpha-L-rhamnopyranose. Vincetoxicoside B has been reported in Stylidocleome brachycarpa, Thulinella chrysantha, and other organisms with data available. |
Solubility Data
| Solubility (In Vitro) | DMSO : ~100 mg/mL (~223.03 mM) |
| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (5.58 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (5.58 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.2303 mL | 11.1513 mL | 22.3025 mL | |
| 5 mM | 0.4461 mL | 2.2303 mL | 4.4605 mL | |
| 10 mM | 0.2230 mL | 1.1151 mL | 2.2303 mL |