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Methanol

OmniSolv® LC-MS, ≥99.9% (GC)

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Synonym(s):
Methyl alcohol
Linear Formula:
CH3OH
CAS Number:
67-56-1
Molecular Weight:
32.04
Beilstein:
1098229
MDL number:
MFCD00004595
EC Index Number:
200-659-6

Agency

suitable for ASTM® 7968
suitable for ASTM® 7979
suitable for DIN 38407-42
suitable for EPA 1613
suitable for EPA 1621
suitable for EPA 1633
suitable for EPA 533
suitable for EPA 537.1
suitable for EPA 8327
suitable for EPA ACB B21-02
suitable for EPA ACB B23-05b
suitable for EPA OTM-45
suitable for GB 31604.35-2016
suitable for GB 5009.253-2016
suitable for ISO 21675 2019
suitable for ISO 25101
suitable for ISO/CEN 15968-2010

Quality Level

100

reg. compliance

suitable for FDA C-010.02

vapor density

1.11 (vs air)

vapor pressure

128 hPa ( 20 °C)
410 mmHg ( 50 °C)
97.68 mmHg ( 20 °C)

product line

OmniSolv®

Assay

≥99.9% (GC)

form

liquid

autoignition temp.

725 °F

expl. lim.

36 %

technique(s)

LC/MS: suitable

impurities

≤0.05% Water (H2O)
≤0.2 μeq/g Titrable base
≤0.3 μeq/g Titrable acid
≤50 ppb p-nitrophenol (LC/MS)
≤50 ppb reserpine (LC/MS)

evapn. residue

≤1 ppm

color

APHA: ≤10

refractive index

n20/D 1.329 (lit.)

bp

64.7 °C (lit.)

mp

−98 °C (lit.)

transition temp

flash point 9.7 °C

SMILES string

CO

density

0.791 g/mL at 25 °C (lit.)

UV cutoff

≤205 nm

UV absorption

λ: 210 nm Amax: ≤0.3
λ: 220 nm Amax: ≤0.1
λ: 230 nm Amax: ≤0.04
λ: 240 nm Amax: ≤0.03
λ: 250 nm Amax: ≤0.01
λ: 270 nm Amax: ≤0.01
λ: 400-280 nm Amax: ≤0.005

format

neat

shipped in

ambient

storage temp.

room temp

InChI

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

InChI key

OKKJLVBELUTLKV-UHFFFAOYSA-N

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General description

Methanol, also known as Methyl alcohol, is a colorless organic solvent commonly used to dissolve substances with high and medium polarity. It is also used as a starting material/solvent for synthesis. It is commonly used as an elution solvent for chromatography.

Application

Methanol is used as:
  • A solvent to prepare the Mobile phase for LC-MS/MS analysis.
  • A solvent or reagent in chemical synthesis
  • A solvent in work-up phase of chemical synthesis
  • A disinfectant to clean laboratory space.

Preparation Note

Product filtered through a 0.2 μm filter

Analysis Note

Assay (GC)99.9% minColor (APHA)10 maxEvaporation residue1ppm maxFiltered through 0.2 µm filterTo pass testFluorescence as quinine at 254 nm1ppb maxFluorescence as quinine at 365 nm1ppb maxFormClear liquidGradient at 235 nm1mAU maxGradient at 254 nm1mAU maxIdentity (IR-spectrum)ConformsLC/MS Purity (p-nitrophenol)50ppb maxLC/MS Purity (reserpine)50ppb maxMetals, suitable for LC/MSTo pass testTitrable acid0.3µeq/g maxTitrable base0.2µeq/g maxUV Abs. at 210 nm0.3AU maxUV Abs. at 220 nm0.1AU maxUV Abs. at 230 nm0.04AU maxUV Abs. at 240 nm0.03AU maxUV Abs. at 250 nm0.01AU maxUV Abs. at 270 nm0.01AU maxUV Abs. at 400-280 nm0.005AU maxUV Cut-off205nm maxWater (H2O)0.05% max
Evaporation Number: 1.9

Legal Information

ASTM is a registered trademark of American Society for Testing and Materials
OMNISOLV is a registered trademark of Merck KGaA, Darmstadt, Germany

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

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Methanol
Gronemann O, et al.
Ullmann's Encyclopedia of Industrial Chemistry (2000)
A threshold LC--MS/MS method for 92 analytes in oral fluid collected with the Quantisal textregistered device
Brigitte D, et al.
Forensic Science International, 317, 110506-110506 (2020)
A modified QuEChERS sample processing method for the determination of per-and polyfluoroalkyl substances (PFAS) in environmental biological matrices
Xiaoyan Y, et al.
MethodsX, 11, 102290-102290 (2023)

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