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Mequitazine (Virginan) is an effective, nonsedative and long-acting histamine H1 antagonist.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 5 mg | $42 | In Stock | In Stock | |
| 10 mg | $58 | In Stock | In Stock | |
| 25 mg | $91 | In Stock | In Stock | |
| 50 mg | $124 | In Stock | In Stock | |
| 100 mg | $156 | In Stock | - | |
| 1 mL x 10 mM (in DMSO) | $46 | In Stock | In Stock |
| Description | Mequitazine (Virginan) is an effective, nonsedative and long-acting histamine H1 antagonist. |
| In vitro | Mequitazine is widely studied and used for allergic disorders such as hay fever and urticaria[1]. Mequitazine demonstrates significant bactericidal effects against all the tested clinical isolates including Ps. aeruginosa. Its effect against the Gram-positive isolates is more pronounced [2]. |
| In vivo | Mequitazine antagonizes the effect of histamine in guinea-pig ileum competitively. Mequitazine at 107 produces a parallel shift of the dose-response curve to acetylcholine in the rat duodenum. Mequitazine at highest concentration shows anticholinergic activity [3]. Mequitazine inhibits contractile responses to KCl, phenylephrine (PE), 5-hydroxytryptamine (5-HT), and Ca2+ in rat aorta [4]. |
| Synonyms | Virginan, Primalan, Metaplexan, LM-209 |
| Molecular Weight | 322.47 |
| Formula | C20H22N2S |
| Cas No. | 29216-28-2 |
| Smiles | C(C1CN2CCC1CC2)N1c2ccccc2Sc2ccccc12 |
| Relative Density. | 1.28 g/cm3 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||||||||||||
| Solubility Information | DMSO: 50 mg/mL (155.05 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
| In Vivo Formulation | 10% DMSO+40% PEG300+5% Tween-80+45% Saline: 2.5 mg/mL (7.75 mM), Sonication is recommended. Please add the solvents sequentially, clarifying the solution as much as possible before adding the next one. Dissolve by heating and/or sonication if necessary. Working solution is recommended to be prepared and used immediately. The formulation provided above is for reference purposes only. In vivo formulations may vary and should be modified based on specific experimental conditions. | |||||||||||||||||||||||||||||||||||
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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