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Naldemedine tosylate (S-297995) is an orally active μ-opioid receptor antagonist (PAMORA) with high binding affinities (K_i = 0.34, 0.43, 0.94 nM) and potent antagonist activities (IC_50 = 25.57, 7.09, 16.1 nM) towards human recombinant μ-, δ-, and κ-opioid receptors, respectively. It is utilized in research on opioid-induced constipation (OIC) and is anticipated to interact with the 3CL proenzyme encoded by the SARS-CoV-2 genome.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 25 mg | $1,500 | 10-14 weeks | 10-14 weeks | |
| 50 mg | $1,960 | 10-14 weeks | 10-14 weeks | |
| 100 mg | $2,970 | 10-14 weeks | 10-14 weeks |
| Description | Naldemedine tosylate (S-297995) is an orally active μ-opioid receptor antagonist (PAMORA) with high binding affinities (K_i = 0.34, 0.43, 0.94 nM) and potent antagonist activities (IC_50 = 25.57, 7.09, 16.1 nM) towards human recombinant μ-, δ-, and κ-opioid receptors, respectively. It is utilized in research on opioid-induced constipation (OIC) and is anticipated to interact with the 3CL proenzyme encoded by the SARS-CoV-2 genome. |
| Synonyms | S-297995 tosylate |
| Molecular Weight | 742.84 |
| Formula | C39H42N4O9S |
| Cas No. | 1345728-04-2 |
| Smiles | S(=O)(=O)(O)C1=CC=C(C)C=C1.O[C@]12[C@@]34C=5C(O[C@]3(C(O)=C(C(NC(C)(C)C6=NC(=NO6)C7=CC=CC=C7)=O)C1)[H])=C(O)C=CC5C[C@]2(N(CC8CC8)CC4)[H] |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. |
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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