Merck
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1.03726

Supelco

Methanol

for UHPLC-MS LiChrosolv®

Synonym(s):
MeOH, Hydroxymethane, Carbinol, Methyl alcohol
Linear Formula:
CH3OH
CAS Number:
Molecular Weight:
32.04
Beilstein:
1098229
MDL number:
EC Index Number:
200-659-6

Quality Level

vapor density

1.11 (vs air)

vapor pressure

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

product line

LiChrosolv®

assay

99.9% (GC)

form

liquid

autoignition temp.

725 °F

expl. lim.

36 %

technique(s)

UHPLC: suitable

refractive index

n20/D 1.329 (lit.)

kinematic viscosity

0.54-0.59 cSt(20 °C)

bp

64.7 °C (lit.)

mp

−98 °C (lit.)

transition temp

flash point 9.7 °C

density

0.791 g/mL at 25 °C (lit.)

storage temp.

2-30°C

SMILES string

CO

InChI

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

InChI key

OKKJLVBELUTLKV-UHFFFAOYSA-N

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General description

UHPLC-MS LiChrosolv® solvents are designed to meet the highest requirements of UHPLC-MS in research and quality control, including proteomics and metabolomics and environmental, clinical, food or industrial testing applications

Application

Methanol is a high-purity solvent used as a mobile phase component in ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS) analysis.
The product is used as a solvent in studies such as the following:
  • high resolution mass spectrometric (HRMS) analysis of per- and polyfluoroalkyl substances (PFAS) in environmental water samples
  • UHPLC-MS/MS study of PFAS and/or perfluorooctane sulfonate (PFOS) in sewage sludge and soil samples

Features and Benefits

  • suitability tested and specified for UHPLC-MS and UHPLC-UV: for analytical flexibility
  • specified quality in positive and negative in positive and negative electrospray ionization (ESI) and atmospheric-pressure chemical ionization-mass spectrometry (APCI-MS) for lowest detection limits and confidence in analyses for all important MS modes (test 1)
—ESI/APCI (+) < 2 ppb
—ESI/APCI (-) < 10 ppb
  • lowest impurity profile: for interference-free baselines (test 2)
  • microfiltered through 0.2 μm filter (test 3) to provide:
—a long lifespan to filters and mechanical parts of HPLC systems
—reduced risk of column clogging
  • packed in borosilicate glass bottles for minimized metal ion contaminations
  • lowest levels of trace metal impurities for a minimum metal ion adduct formation
— <5 ppb
  • lowest level of polyethylene glycol (PEG) impurities in UHPLC-MS solvent lineup (PEG S/N signal-to-noise-ratio < 50)

Analysis Note

Evaporation Number: 1.9

Legal Information

LICHROSOLV 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 Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

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