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A2251

Sigma-Aldrich

Acetyl-β-methylcholine chloride

≥98% (TLC), powder

Synonym(s):

(2-Acetoxypropyl)trimethylammonium chloride, Methacholine chloride

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About This Item

Linear Formula:
CH3COOCH(CH3)CH2N(Cl)(CH3)3
CAS Number:
62-51-1
Molecular Weight:
195.69
Beilstein/REAXYS Number:
4162373
EC Number:
200-537-2
MDL number:
MFCD00011817
UNSPSC Code:
12352211
PubChem Substance ID:
24277821
NACRES:
NA.25
assay:
≥98% (TLC)
Pricing and availability is not currently available.

Quality Level

100

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

Gene Information

human ... CHRM1(1128), CHRM2(1129), CHRM3(1131), CHRM4(1132), CHRM5(1133)

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1 of 4

This Item
A562626978C4382
Acetyl-β-methylcholine chloride ≥98% (TLC), powder

A2251

Acetyl-β-methylcholine chloride

Acetylthiocholine chloride ≥99% (TLC), powder

A5626

Acetylthiocholine chloride

Choline chloride BioUltra, ≥99.0% (AT)

26978

Choline chloride

Carbamoylcholine chloride ≥98% (titration), crystalline

C4382

Carbamoylcholine chloride

assay

≥98% (TLC)

assay

≥99% (TLC)

assay

≥99.0% (AT)

assay

≥98% (titration)

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

100

solubility

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

solubility

water: 100 mg/mL, clear to slightly hazy, colorless

solubility

H2O: 1 M, clear, colorless

solubility

H2O: 1 g/mL, ethanol: 20 mg/mL

form

powder

form

powder

form

powder or crystals

form

crystalline

mp

171-173 °C (lit.)

mp

-

mp

302-305 °C (dec.) (lit.)

mp

210 °C (dec.) (lit.)

storage temp.

−20°C

storage temp.

−20°C

storage temp.

-

storage temp.

-

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.

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
GHS07

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Gloves

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    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCQ3788
    MKCQ3945
    MKCP6579
    MKCM4969
    MKCN6991

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