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Palonosetron hydrochloride (RS 25259) is a 5-HT3 antagonist used in the prevention and treatment of chemotherapy-induced nausea and vomiting.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 25 mg | $34 | In Stock | In Stock | |
| 50 mg | $48 | In Stock | In Stock | |
| 100 mg | $77 | In Stock | In Stock | |
| 500 mg | $198 | In Stock | In Stock |
| Description | Palonosetron hydrochloride (RS 25259) is a 5-HT3 antagonist used in the prevention and treatment of chemotherapy-induced nausea and vomiting. |
| In vivo | Palonosetron exhibits a longer plasma half-life of approximately 40 hours compared to other antagonists in its class (ondansetron, 4 hours; tropisetron, 7.3 hours; dolasetron, 7.5 hours; ranisetron, 8.9 hours). Additionally, it demonstrates a hundredfold greater binding affinity to the 5-HT3 receptor, with a pKi of 10.5, which is significantly higher than that of granisetron (pKi 8.91), tropisetron (pKi 8.81), ondansetron (pKi 8.39), and dolasetron (pKi 7.6). |
| Synonyms | RS-25259-197, RS 25259, Palonosetron HCl |
| Molecular Weight | 332.87 |
| Formula | C19H24N2O·HCl |
| Cas No. | 135729-62-3 |
| Smiles | Cl.O=C1N(C[C@H]2CCCc3cccc1c23)[C@@H]1CN2CCC1CC2 |
| Relative Density. | no data available |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | ||||||||||||||||||||||||||||||||||||||||
| Solubility Information | H2O: 100 mg/mL (300.42 mM), Sonication is recommended. DMSO: 3.33 mg/mL (10 mM), Sonication is recommended. | ||||||||||||||||||||||||||||||||||||||||
Solution Preparation Table | |||||||||||||||||||||||||||||||||||||||||
DMSO/H2O
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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