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3-aminopropylphosphonic acid (3-APPA) is a phosphonic analog of GABA that acts as a partial agonist of GABAB receptors (IC50 = 1.5 μM in a radioligand binding assay).

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 100 mg | $40 | - | In Stock | |
| 200 mg | $59 | - | In Stock |
| Description | 3-aminopropylphosphonic acid (3-APPA) is a phosphonic analog of GABA that acts as a partial agonist of GABAB receptors (IC50 = 1.5 μM in a radioligand binding assay). |
| In vitro | 3-aminopropylphosphonic acid (IC50 1.5 microM) and 4-aminobutyl-phosphonic acid (IC50 3.9 μM) were much more potent than anticipated from their relatively weak GABAB antagonist actions [1]. 3-aminopropylphosphonic acid was a potent inhibitor (IC50 6μM) of the binding of [3H]GABA to rat brain membranes under GABAB conditions, i.e. in the presence of 0.1 mM isoguvacine and displaceable by 0.1 mM (+)-baclofen [1]. |
| In vivo | 3-aminopropylphosphonic acid induces relaxation in unstimulated isolated guinea pig ileum longitudinal muscle and reverses GABA- and baclofen-induced inhibition of twitch responses in isolated guinea pig ileum longitudinal muscle. 3-APPA (5 mg/kg) completely inhibits GABA- and baclofen-induced inhibition of vagally stimulated bronchospasms in guinea pigs. It also reverses the antitussive effect of baclofen in cats when administered at a dose of 3 mg/kg. |
| Molecular Weight | 139.09 |
| Formula | C3H10NO3P |
| Cas No. | 13138-33-5 |
| Smiles | NCCCP(O)(O)=O |
| Relative Density. | 1.378 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 | Ethanol:PBS (pH 7.2) (1:3): 0.25 mg/mL (1.8 mM), Sonication is recommended. H2O: 105 mg/mL (754.91 mM), Sonication is recommended. DMF: 5 mg/mL (35.95 mM), Sonication is recommended. DMSO: < 1 mg/mL (insoluble or slightly soluble) Ethanol: 30 mg/mL (215.69 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||||||||||||
DMF/Ethanol/H2O
Ethanol/H2O
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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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