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24229

Sigma-Aldrich

Methanol

puriss., meets analytical specification of Ph Eur, ≥99.7% (GC)

Synonym(s):
Methyl alcohol
Linear Formula:
CH3OH
CAS Number:
Molecular Weight:
32.04
Beilstein:
1098229
EC Number:
MDL number:
eCl@ss:
39020101
PubChem Substance ID:
NACRES:
NA.05

Quality Level

vapor density

1.11 (vs air)

vapor pressure

410 mmHg ( 50 °C)
97.68 mmHg ( 20 °C)

grade

puriss.

assay

≥99.7% (GC)

form

liquid

autoignition temp.

725 °F

quality

meets analytical specification of Ph Eur

expl. lim.

36 %

technique(s)

immunofluorescence: suitable

impurities

impurities A, complies (GC)
reducing substances, complies
related substances, complies (GC)
residual solvents, complies
≤0.0002% benzene
≤0.0003% free alkali (as NH3)
≤0.001% acetone (GC)
≤0.001% non-volatile matter
≤0.003% aldehydes and ketones (as CH3COCH3)
≤0.003% free acid (as HCOOH)
≤0.1% water (Karl Fischer)

refractive index

n20/D 1.328-1.330
n20/D 1.329 (lit.)

bp

64.7 °C (lit.)

mp

−98 °C (lit.)

density

0.791-0.793 g/mL at 20 °C
0.791 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤1 mg/kg
sulfate (SO42-): ≤5 mg/kg

cation traces

Fe: ≤1 mg/kg

suitability

complies for UV absorption
complies for appearance
complies for identity (IR)
complies for reaction against H2SO4

SMILES string

CO

InChI

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

InChI key

OKKJLVBELUTLKV-UHFFFAOYSA-N

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General description

Methanol is an alcohol. Its conversion to C2-C10 hydrocarbons by employing a new class of shape-selective zeolites has been reported. Its oxidation on Ru-Pt catalyst system by ruthenium ad-atoms has been proposed.

Application

Methanol was used in the following studies:
  • Colony forming unit-fibroblast assay of bone marrow mononuclear cells.
  • As solvent for the preparation of extracts of hyphae of Aspergillus for the estimation of gliotoxin by reversed phase-HPLC.
  • Immunofluorescence studies.

Packaging

This product is also available in glass bottles.

Other Notes

The article number 24229-4X2.5L-R will be discontinued. Please order the single bottle 24229-2.5L-R which is physically identical with the same exact specifications.

Signal Word

Danger

Hazard Classifications

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

Target Organs

Eyes

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

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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