Methacholine chlorideProduct ingredient for Methacholine
- Name
- Methacholine chloride
- Drug Entry
- Methacholine
Asthma is a complex condition associated with phenomena such as airway hyperresponsiveness (AHR), in which the smooth muscle in the airways (ASM) excessively contracts in response to stimuli, reducing pulmonary function and causing symptoms such as difficulty breathing.1,2 Although the underlying pathology of AHR is complex, ASM contraction can be stimulated by cholinergic agonists that activate M3 muscarinic receptors that stimulate ASM contraction.2,4,8 Methacholine is a non-specific cholinergic agonist (parasympathomimetic) that acts through muscarinic receptors in the lungs to induce bronchoconstriction.11 In patients with AHR, a lower dose of methacholine is required to induce bronchoconstriction, which forms the basis for the methacholine challenge test to diagnose AHR.10,11
Methacholine was granted FDA approval on October 31, 1986, and is marketed under the trademark PROVOCHOLINE® by Methapharm Inc.11
- Accession Number
- DBSALT001175
- Structure
Structure for Methacholine chloride (DBSALT001175)
- Synonyms
- Not Available
- UNII
- 0W5ETF9M2K
- CAS Number
- 62-51-1
- Weight
- Average: 195.69
Monoisotopic: 195.1026065 - Chemical Formula
- C8H18ClNO2
- InChI Key
- JHPHVAVFUYTVCL-UHFFFAOYSA-M
- InChI
- InChI=1S/C8H18NO2.ClH/c1-7(11-8(2)10)6-9(3,4)5;/h7H,6H2,1-5H3;1H/q+1;/p-1
- IUPAC Name
- [2-(acetyloxy)propyl]trimethylazanium chloride
- SMILES
- [Cl-].CC(C[N+](C)(C)C)OC(C)=O
- External Links
- ChemSpider
- 5888
- ChEBI
- 50142
- ChEMBL
- CHEMBL1200764
- Wikipedia
- Methacholine
- Predicted Properties
Property Value Source Water Solubility 0.0947 mg/mL ALOGPS logP -3 ALOGPS logP -3.8 Chemaxon logS -3.3 ALOGPS pKa (Strongest Basic) -7 Chemaxon Physiological Charge 1 Chemaxon Hydrogen Acceptor Count 1 Chemaxon Hydrogen Donor Count 0 Chemaxon Polar Surface Area 26.3 Å2 Chemaxon Rotatable Bond Count 4 Chemaxon Refractivity 55.76 m3·mol-1 Chemaxon Polarizability 18.51 Å3 Chemaxon Number of Rings 0 Chemaxon Bioavailability 1 Chemaxon Rule of Five Yes Chemaxon Ghose Filter No Chemaxon Veber's Rule Yes Chemaxon MDDR-like Rule No Chemaxon