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Sigma-Aldrich

Methanol

ACS reagent, ≥99.8%

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Synonym(s):
Methyl alcohol
Linear Formula:
CH3OH
CAS Number:
67-56-1
Molecular Weight:
32.04
Beilstein:
1098229
EC Number:
200-659-6
MDL number:
MFCD00004595
PubChem Substance ID:
329753975
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

vapor density

1.11 (vs air)

vapor pressure

410 mmHg ( 50 °C)
97.68 mmHg ( 20 °C)

Assay

≥99.8%

form

liquid

autoignition temp.

725 °F

expl. lim.

36 %

impurities

H2SO4, passes test (darkened)
 MnO4- reducers, passes test
≤0.0002 meq/g Titr. base
≤0.0003 meq/g Titr. acid
≤0.001% acetaldehyde
≤0.001% acetone
≤0.001% formaldehyde
≤0.1% water

evapn. residue

≤0.001%

color

APHA: ≤10
clear

refractive index

n20/D 1.329 (lit.)

bp

64.7 °C (lit.)

mp

−98 °C (lit.)

density

0.791 g/mL at 25 °C (lit.)

format

neat

SMILES string

CO

InChI

1S/CH4O/c1-2/h2H,1H3

InChI key

OKKJLVBELUTLKV-UHFFFAOYSA-N

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General description

Methanol is a polar solvent and feedstock to produce chemicals and fuel additives. It can be produced through the catalytic hydrogenation of CO2.

Application

Methanol can be used as a solvent in the:
  • Palladium(II)-exchanged hydroxyapatite-catalyzed Suzuki–Miyaura cross-coupling reactions.
  • Reductive amination of ketones with ammonia and dihydrogen to synthesize primary amines.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

49.5 °F - closed cup

Flash Point(C)

9.7 °C - closed cup

Regulatory Information

危险化学品

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Development of digestive enzyme activity in larvae of spotted sand bass Paralabrax maculatofasciatus II: electrophoretic analysis.
Alvarez-Gonzalez CA, et al.
Fish Physiology and Biochemistry, 36(1), 29-37 (2010)
Carotenoid Extraction and Quantification from Capsicum annuum.
Richins RD, et al.
Bio-protocol, 4(19), e1256-e1256 (2014)
Electrocatalysis by ad-atoms: Part II. Enhancement of the oxidation of methanol on platinum by ruthenium ad-atoms.
Watanabe MA and Motoo S.
J. Electroanal. Chem. Interfac. Electrochem., 60(3), 267-273 (1975)
The conversion of methanol and other O-compounds to hydrocarbons over zeolite catalysts.
Chang CD and Silvestri AJ.
J. Catal., 47(2), 249-259 (1977)
Timo Heidt et al.
Circulation research, 115(2), 284-295 (2014-05-03)
Macrophages populate the steady-state myocardium. Previously, all macrophages were thought to arise from monocytes; however, it emerged that, in several organs, tissue-resident macrophages may self-maintain through local proliferation. Our aim was to study the contribution of monocytes to cardiac-resident macrophages
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