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Pipequaline (PK-8165) is an anticonflict & anticonvulsant quinoline derivative. It is an anxiolytic drug that was never marketed. It possesses a novel chemical structure that is not closely related to other drugs of this type. The drug has a similar pharmacological profile to the benzodiazepine family of drugs, but with mainly anxiolytic properties and very little sedative, amnestic or anticonvulsant effects, and so is classified as a nonbenzodiazepine anxiolytic.


| Description | Pipequaline (PK-8165) is an anticonflict & anticonvulsant quinoline derivative. It is an anxiolytic drug that was never marketed. It possesses a novel chemical structure that is not closely related to other drugs of this type. The drug has a similar pharmacological profile to the benzodiazepine family of drugs, but with mainly anxiolytic properties and very little sedative, amnestic or anticonvulsant effects, and so is classified as a nonbenzodiazepine anxiolytic. |
| In vitro | Pipequaline is extensively bound to plasma proteins: i.e. human serum albumin (HSA), alpha-1-acid glycoprotein (AAG), lipoproteins and blood cells, mainly erythrocytes[1]. |
| In vivo | Intravenously administered pipequaline partially suppresses activations by kainate, glutamate, and acetylcholine. Microiontophoretic applications of pipequaline reduce neuronal activation by kainate[2]. In small intravenous doses, pipequaline potentiates the effect of microiontophoretically-applied flurazepam, whereas in larger doses, it suppresses the effects of microiontophoretically-applied flurazepam and intravenously administered lorazepam on kainate-induced activation. Pipequaline produces dose-related decreases in motor activity and significant dose-related decreases in the number of head-dips made[3]. |
| Animal Research | Rats: Pipequaline is dissolved in water to give injection volumes of 2 mL/kg. Rats are injected with 5, 10, and 50 mg/kg pipequaline. Infrared cells in the walls of the box provided automated measures of locomotor activity and rearing, respectively[3]. |
| Synonyms | PK-8165 |
| Molecular Weight | 316.44 |
| Formula | C22H24N2 |
| Cas No. | 77472-98-1 |
| Smiles | C(Cc1cc(nc2ccccc12)-c1ccccc1)C1CCNCC1 |
| Relative Density. | 1.078g/cm3 |
| 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: 32 mg/mL (101.13 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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