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Purity: ≥98%
ABT-639 is a new potent, peripherally acting, selective T-type Ca2+ channel blocker that blocks recombinant human T-type (Cav3.2) Ca2+ channels in a voltage-dependent fashion (IC50=2 μM) and attenuates low voltage-activated (LVA) currents in rat DRG neurons (IC50=8 μM). ABT-639 is significantly less active at other Ca2+ channels (e.g. Cav1.2 and Cav2.2) (IC50>30 mM). Following oral administration ABT-639 produced dose-dependent antinociception in a rat model of knee joint pain (ED₅₀ = 2 mg/kg, p.o.). ABT-639 (10-100 mg/kg, p.o.) also increased tactile allodynia thresholds in multiple models of neuropathic pain (e.g. spinal nerve ligation, CCI, and vincristine-induced). [corrected]. ABT-639 did not attenuate hyperalgesia in inflammatory pain models induced by complete Freund's adjuvant or carrageenan. At higher doses (e.g. 100-300 mg/kg) ABT-639 did not significantly alter hemodynamic or psychomotor function. The antinociceptive profile of ABT-639 provides novel insights into the role of peripheral T-type (Ca(v)3.2) channels in chronic pain states.
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| ln Vivo |
ABT-639 attenuates low voltage-activated (LVA) currents in rat DRG neurons (IC50=8 μM) and blocks recombinant human T-type (Cav3.2) Ca2+ channels in a voltage-dependent manner (IC50=2 μM). ABT -639 exhibits significantly lower activity at other Ca2+ channels (IC50>30 mM), such as Cav1.2 and Cav2.2. In rodents, ABT-639 exhibits low protein binding (88.9%), a low brain:plasma ratio (0.05:1), and high oral bioavailability (%F=73). In a rat model of knee joint pain, oral administration of ABT-639 results in dose-dependent antinociception (ED50=2 mg/kg, po). In various models of neuropathic pain, such as spinal nerve ligation, CCI, vincristine-induced, and capsaicin secondary hypersensitivity, ABT-639 (10-100 mg/kg, po) also raises tactile allodynia thresholds. In inflammatory pain models induced by carrageenan or complete Freund's adjuvant, ABT-639 does not reduce hyperalgesia. Higher doses of ABT-639 (such as 100–300 mg/kg) have no discernible effects on hemodynamic or psychomotor function. Novel insights into the function of peripheral T-type (Cav3.2) channels in chronic pain states are offered by the antinociceptive profile of ABT-639[1].
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| References |
[1]. Jarvis MF, et al. A peripherally acting, selective T-type calcium channel blocker, ABT-639, effectively reduces nociceptive and neuropathic pain in rats. Biochem Pharmacol. 2014 Jun 15;89(4):536-44
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| Molecular Formula |
C20H20CLF2N3O3S
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| Molecular Weight |
455.91
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| CAS # |
1235560-28-7
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| Related CAS # |
ABT-639 hydrochloride;1235560-31-2
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| SMILES |
ClC1=CC(=C(C=C1C(N1CCN2CCC[C@@H]2C1)=O)S(NC1C=CC=CC=1F)(=O)=O)F
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
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| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
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| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.1934 mL | 10.9671 mL | 21.9342 mL | |
| 5 mM | 0.4387 mL | 2.1934 mL | 4.3868 mL | |
| 10 mM | 0.2193 mL | 1.0967 mL | 2.1934 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
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