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Propantheline bromide (Pro-Banthine) competitively antagonizes acetylcholine activity mediated by muscarinic receptors at neuroeffector sites on smooth muscle and exocrine gland cells. Propantheline Bromide is the bromide salt form of propantheline, a quaternary ammonium compound structurally related to belladonna alkaloids. An aspartic acid residue present in the N-terminal portion of the third transmembrane helix of the muscarinic receptor is believed to form an ionic bond with the tertiary or quaternary nitrogen of the antagonist. Antagonism leads to a reduction of exocrine glands secretions and to relax the bronchial muscle and reduce tone and motility of intestinal smooth muscle.

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 50 mg | $33 | In Stock | |
| 100 mg | $47 | In Stock | |
| 200 mg | $68 | In Stock | |
| 500 mg | $109 | In Stock | |
| 1 mL x 10 mM (in DMSO) | $39 | In Stock |
| Description | Propantheline bromide (Pro-Banthine) competitively antagonizes acetylcholine activity mediated by muscarinic receptors at neuroeffector sites on smooth muscle and exocrine gland cells. Propantheline Bromide is the bromide salt form of propantheline, a quaternary ammonium compound structurally related to belladonna alkaloids. An aspartic acid residue present in the N-terminal portion of the third transmembrane helix of the muscarinic receptor is believed to form an ionic bond with the tertiary or quaternary nitrogen of the antagonist. Antagonism leads to a reduction of exocrine glands secretions and to relax the bronchial muscle and reduce tone and motility of intestinal smooth muscle. |
| Synonyms | Pro-Banthine, Neopepulsan, Neometantyl |
| Molecular Weight | 448.4 |
| Formula | C23H30BrNO3 |
| Cas No. | 50-34-0 |
| Smiles | [Br-].CC(C)[N+](C)(CCOC(=O)C1c2ccccc2Oc2ccccc12)C(C)C |
| Relative Density. | 1.2916 g/cm3 (Estimated) |
| Color | White |
| Appearance | Solid |
| Storage | store under nitrogen | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||||||||||||
| Solubility Information | H2O: 50 mg/ml (111.51 mM), Sonication is recommended. DMSO: 60 mg/mL (133.81 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
| In Vivo Formulation | 10% DMSO+40% PEG300+5% Tween 80+45% Saline: 2 mg/mL (4.46 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 | ||||||||||||||||||||||||||||||||||||
H2O/DMSO
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