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Rupatadine (UR-12592, rupatadine) is a potent and orally available dual antagonist of PAF and histamine H1 receptors with Ki values of 0.55 μM and 0.1 μM, respectively, which provides relief of allergic symptoms and anti-inflammatory properties, and is used in allergic rhinitis and chronic urticaria.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 10 mg | $30 | In Stock | In Stock | |
| 25 mg | $52 | In Stock | In Stock | |
| 50 mg | $87 | In Stock | In Stock | |
| 100 mg | $135 | In Stock | In Stock |
| Description | Rupatadine (UR-12592, rupatadine) is a potent and orally available dual antagonist of PAF and histamine H1 receptors with Ki values of 0.55 μM and 0.1 μM, respectively, which provides relief of allergic symptoms and anti-inflammatory properties, and is used in allergic rhinitis and chronic urticaria. |
| Targets&IC50 | H1 Receptor:0.1 μM (Ki), PAF-induced platelet aggregation (human plasma):0.68 μM, PAF:0.55 μM (Ki) |
| In vitro | Rupatadine acts as a dual H1 and PAF receptor antagonist. Rupatadine has a Ki of 0.10 μM for H1 and 0.55 μM for PAF receptors. Rupatadine competitively inhibits histamine-induced guinea pig ileum contraction (pA₂ = 9.29), and PAF-induced platelet aggregation in rabbit platelets (pA₂ = 6.68) and human plasma (IC₅₀ = 0.68 μM), without affecting ACh, 5-HT, or LTD₄ responses[1]. |
| In vivo | Rupatadine blocks histamine- and PAF-induced hypotension (ID₅₀ = 1.4 and 0.44 mg/kg i.v.) and bronchoconstriction (113 and 9.6 μg/kg i.v.). Rupatadine protects mice from PAF- and endotoxin-induced death (ID₅₀ = 0.31-3.0 mg/kg). In dogs, 1 mg/kg p.o. still inhibited vascular permeability >26 h. No sedation was observed at 100 mg/kg[1]. |
| Synonyms | UR-12592, UR12592 |
| Molecular Weight | 415.96 |
| Formula | C26H26ClN3 |
| Cas No. | 158876-82-5 |
| Smiles | ClC=1C=CC2=C(C1)CCC=3C=CC=NC3C2=C4CCN(CC=5C=NC=C(C5)C)CC4 |
| Storage | keep away from moisture | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||||||||||||
| Solubility Information | DMSO: 100 mg/mL (240.41 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||||||||||||
DMSO
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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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