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Brevetoxin-3 (PbTx-3) is a potent allosteric activator of voltage-gated Na+ channels, exhibiting a high affinity for site 5 and inhibiting the inactivation of these channels.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 100 μg | $1,270 | 35 days | 35 days |
| Description | Brevetoxin-3 (PbTx-3) is a potent allosteric activator of voltage-gated Na+ channels, exhibiting a high affinity for site 5 and inhibiting the inactivation of these channels. |
| Targets&IC50 | Na+-ATPase: |
| In vitro | Brevetoxin-3, at concentrations ranging from 30-500 nM, induces a shift in activation towards more negative membrane potentials, facilitating the observation of single-channel activity under steady-state conditions (specifically, maintained depolarization at -50 mV) [1]. |
| In vivo | Brevetoxin-3 (intratracheal instillation; 2.8 μg/kg; gestational days 15-18) radioactivity is detected in placentas and fetuses within 0.5 hours. Concentrations of brevetoxin equivalents in fetuses are approximately 0.3 ng/g throughout the 48-h post-dosing, resulting in a calculated dose to fetuses of 19 ng/gh [3]. |
| Synonyms | PbTx-3 |
| Molecular Weight | 897.112 |
| Formula | C50H72O14 |
| Cas No. | 85079-48-7 |
| Smiles | [H][C@]12C[C@@]3([H])O[C@H](CC(=C)CO)C[C@H](O)[C@]3(C)O[C@]1([H])C[C@]1([H])O[C@]3([H])C[C@]4(C)O[C@]5(C)CC[C@]6([H])O[C@]7([H])C[C@]8(C)O[C@]9([H])C(C)=CC(=O)O[C@@]9([H])C[C@@]8([H])O[C@@]7([H])C[C@@H](C)[C@@]6([H])O[C@@]5([H])C[C@@]4([H])O[C@@]3(C)CC=C[C@@]1([H])O2 |w:74.82,c:48| |
| Relative Density. | 1.187g/cm3 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. |
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