Homatropine (methylbromide)
Based on 1 Customer Validation
Homatropine methylbromide (Homatropine methobromide) is muscarinic AChR antagonist, inhibits endothelial and smooth muscle muscarinic receptors of WKY-E and SHR-E with IC50 of 162.5 nM and 170.3 nM, respectively.
For research use only. We do not sell to patients.
- Purity: 98.0%
- CAS No.: 80-49-9
- Formula: C17H24BrNO3
- Molecular Weight:370.28
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Storage:
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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Biological Activity
IC50: WKY-E (162.5 nM), SHR-E (170.4 nM)
Homatropine methylbromide (Homatropine methobromide) (20 μM) alone produces a dose ratio of 259 in atrium from guinea-pigs. Homatropine methylbromide (Homatropine methobromide) (20 μM) produces a dose ratio of only 95.0 when combined with hexamethonium in atrium from guinea-pigs.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 80-49-9
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Appearance Solid
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Molecular Weight 370.28
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Formula C17H24BrNO3
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Color White to off-white
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SMILES
C[N+]1([C@@H]2C[C@@H](OC(C(O)C3=CC=CC=C3)=O)C[C@H]1CC2)C.[Br-]
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Synonyms
Homatropine methobromide
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Solvent & Solubility
H2O : ≥ 100 mg/mL (270.07 mM)
DMSO : ≥ 31 mg/mL (83.72 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
* "≥" means soluble, but saturation unknown.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Purity & Documentation
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Data Sheet (276 KB)
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SDS (419 KB)
- English - EN (419 KB)
- Français - FR (419 KB)
- Deutsch - DE (419 KB)
- Norwegian - NO (419 KB)
- Español - ES (419 KB)
- Swedish - SV (419 KB)
- Italian - IT (419 KB)
- Korean - KR (419 KB)
- Portuguese - PT (419 KB)
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Handling Instructions (2659 KB)
References
[1]. Sim MK et al. Muscarinic receptors in the aortae of normo- and hypertensive rats: a binding study. Clin Exp Hypertens. 1993 Mar;15(2):409-21. [Content Brief]
[2]. Bryant SM et al. Intramuscular ophthalmic homatropine vs. atropine to prevent lethality in rates with dichlorvos poisoning. J Med Toxicol. 2006 Dec;2(4):156-9. [Content Brief]
[3]. Leung E et al. Modification by hexamethonium of the muscarinic receptors blocking activity of pancuronium and homatropine in isolated tissues of the guinea-pig. Eur J Pharmacol. 1982 May 7;80(1):11-7. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO / H2O | 1 mM | 2.7007 mL | 13.5033 mL | 27.0066 mL | 67.5165 mL |
| 5 mM | 0.5401 mL | 2.7007 mL | 5.4013 mL | 13.5033 mL | |
| 10 mM | 0.2701 mL | 1.3503 mL | 2.7007 mL | 6.7516 mL | |
| 15 mM | 0.1800 mL | 0.9002 mL | 1.8004 mL | 4.5011 mL | |
| 20 mM | 0.1350 mL | 0.6752 mL | 1.3503 mL | 3.3758 mL | |
| 25 mM | 0.1080 mL | 0.5401 mL | 1.0803 mL | 2.7007 mL | |
| 30 mM | 0.0900 mL | 0.4501 mL | 0.9002 mL | 2.2505 mL | |
| 40 mM | 0.0675 mL | 0.3376 mL | 0.6752 mL | 1.6879 mL | |
| 50 mM | 0.0540 mL | 0.2701 mL | 0.5401 mL | 1.3503 mL | |
| 60 mM | 0.0450 mL | 0.2251 mL | 0.4501 mL | 1.1253 mL | |
| 80 mM | 0.0338 mL | 0.1688 mL | 0.3376 mL | 0.8440 mL | |
| H2O | 100 mM | 0.0270 mL | 0.1350 mL | 0.2701 mL | 0.6752 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
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