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Geissoschizine methyl ether, a major indole alkaloid found in Uncaria hook, is a key active component of Yokukansan with psychotropic effects. It is a potent serotonin A receptor agonist and a candidate for ameliorating aggressiveness and sociality by Yokukansan.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 1 mg | $139 | In Stock | In Stock | |
| 2 mg | $208 | In Stock | In Stock | |
| 5 mg | $355 | In Stock | In Stock | |
| 10 mg | $538 | In Stock | In Stock | |
| 25 mg | $855 | In Stock | In Stock | |
| 50 mg | $1,150 | In Stock | In Stock | |
| 100 mg | $1,550 | In Stock | In Stock | |
| 1 mL x 10 mM (in DMSO) | $363 | In Stock | In Stock |
| Description | Geissoschizine methyl ether, a major indole alkaloid found in Uncaria hook, is a key active component of Yokukansan with psychotropic effects. It is a potent serotonin A receptor agonist and a candidate for ameliorating aggressiveness and sociality by Yokukansan. |
| In vitro | To find the candidate ingredients, we examined competitive binding assay and [(35)S] guanosine 5'-O-(3-thiotriphosphate) (GTPγS) binding assay of seven major alkaloids in UH using Chinese hamster ovary cells expressing 5-HT(1A) receptors artificially. Only Geissoschizine methyl ether (GM) among seven alkaloids potently bound to 5-HT(1A) receptors and acted as a partial agonist. This in vitro result on GM was further demonstrated in the socially isolated mice. As did YKS and UH, GM ameliorated the isolation-induced increased aggressiveness and decreased sociality, and the effect was counteracted by coadministration of WAY-100635[1] |
| Molecular Weight | 366.45 |
| Formula | C22H26N2O3 |
| Cas No. | 60314-89-8 |
| Smiles | CO\C=C(\[C@H]1C[C@@H]2N(CCc3c2[nH]c2ccccc32)C\C1=C\C)C(=O)OC |
| Relative Density. | 1.23 g/cm3 (Predicted) |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||
| Solubility Information | DMSO: 11 mg/mL (30.02 mM), Sonication is recommended. | |||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||
DMSO
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Dissolve 2 mg of the compound in 100 μL DMSO
to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
1) Add 100 μL of the DMSO
stock solution to 400 μL PEG300
and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O
and mix thoroughly until a homogeneous solution is obtained.
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