Merck
All Photos(3)

A2251

Sigma-Aldrich

Acetyl-β-methylcholine chloride

≥98% (TLC), powder

Synonym(s):
(2-Acetoxypropyl)trimethylammonium chloride, Methacholine chloride
Linear Formula:
CH3COOCH(CH3)CH2N(Cl)(CH3)3
CAS Number:
Molecular Weight:
195.69
Beilstein:
4162373
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

Quality Level

assay

≥98% (TLC)

form

powder

mp

171-173 °C (lit.)

solubility

H2O: 50 mg/mL (solutions undergo rapid, pH-dependent decomposition at pH > 6.)

storage temp.

−20°C

SMILES string

[Cl-].CC(C[N+](C)(C)C)OC(C)=O

InChI

1S/C8H18NO2.ClH/c1-7(11-8(2)10)6-9(3,4)5;/h7H,6H2,1-5H3;1H/q+1;/p-1

InChI key

JHPHVAVFUYTVCL-UHFFFAOYSA-M

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Application

Acetyl-β-methylcholine (methacholine), an analog of acetylcholine, is use as a receptor agonist to study processes such as airway hyperresponsiveness associated with asthma.

Packaging

25, 100 g in poly bottle

Biochem/physiol Actions

Metabolically stable analog of acetylcholine; muscarinic agonist. Its ability to constrict airway smooth muscle is used to assess bronchial reactivity in the laboratory and clinically.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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