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Merck
CN

65541

Millipore

Methanol

suitable for HPLC, ≥99.9% (GC)

Synonym(s):

Methyl alcohol

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About This Item

Linear Formula:
CH3OH
CAS Number:
Molecular Weight:
32.04
Beilstein:
1098229
EC Number:
MDL number:
UNSPSC Code:
12190000
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vapor density

1.11 (vs air)

vapor pressure

410 mmHg ( 50 °C)
97.68 mmHg ( 20 °C)

Assay

≥99.9% (GC)

autoignition temp.

725 °F

shelf life

limited shelf life, expiry date on the label

expl. lim.

36 %

technique(s)

HPLC: suitable

impurities

≤0.001% free acid (as HCOOH)
≤0.03% water
≤1 ppb quinine fluor., 254 nm
≤1 ppb quinine fluor., 365 nm

evapn. residue

≤0.0005%

transmittance

210 nm, ≥30%
220 nm, ≥50%
235 nm, ≥80%
260 nm, ≥98%

refractive index

n20/D 1.329 (lit.)
n20/D 1.329

bp

64.7 °C (lit.)

mp

−98 °C (lit.)

density

0.791 g/mL at 25 °C (lit.)

solvent strength ε (Al2O3)

0.95 (Lit.)

λ

1 cm path, H2O reference

UV absorption

λ: 210 nm Amax: 0.53
λ: 220 nm Amax: 0.31
λ: 235 nm Amax: 0.10
λ: 260 nm Amax: 0.01

SMILES string

CO

InChI

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

InChI key

OKKJLVBELUTLKV-UHFFFAOYSA-N

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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,Central nervous system

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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