CAS No. 135729-62-3
Batch:
Purity:99.98
Chemical Structure
Check the
Palonosetron HCl
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| CAS Number | 135729-62-3 | |
|---|---|---|
| Molecular Formula |
C19H24N2O.HCl |
|
| Molecular Weight (MW) | 332.87 | |
| SMILES | C1CC2CN(C(=O)C3=CC=CC(=C23)C1)C4CN5CCC4CC5.Cl |
Palonosetron HCl is a selective 5-HT3 receptor antagonist. By targeting and blocking 5-HT3 receptors, it inhibits serotonin-stimulated depolarization of peripheral vagal nerve fibers and central emetic signaling pathways. This receptor blockade disrupts serotonin-mediated neurotransmission in the gastrointestinal tract and the chemoreceptor trigger zone, ultimately preventing emetic reflexes and suppressing chemotherapy-induced nausea and vomiting phenotypes. [1]
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Concentration
Volume
Mass
|
|---|
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| Water | 67 mg/mL |
| DMSO |
Insoluble
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.) |
| Ethanol | Insoluble |
| Water | 66 mg/mL |
| DMSO |
15 mg/mL
(45.06 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | Insoluble |
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
- Preheat media/saline to 37°C.
- Mix rapidly (pipette/vortex) upon addition.
- For complex mixes, always add the aqueous phase last.
- Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
Note: Technical data last updated: Sep 1, 2026.