1.13351

Methanol

≥99.8% (GC), for preparative HPLC, for preparative liquid chromatography, for chromatography, Prepsolv^™

• Synonym(s): Methyl alcohol
• Linear Formula: CH₃OH
• CAS Number: 67-56-1
• Molecular Weight: 32.04
• NACRES: NB.21
• EC Index Number: 200-659-6
• UNSPSC Code: 12191502
• MDL number: MFCD00004595
• Beilstein/REAXYS Number: 1098229
• Assay: ≥99.8% (GC)
• Technique(s): HPLC: suitable
• Bp: 64.7 °C (lit.)
• Vapor pressure: 128 hPa ( 20 °C), 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C)

Properties

• Product Name: Methanol, for preparative chromatography Prepsolv^™
• vapor density: 1.11 (vs air)
• Quality Segment: 200
• vapor pressure: 128 hPa ( 20 °C), 410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C)
• description: for preparative HPLC, for preparative liquid chromatography
• product line: Prepsolv^™
• assay: ≥99.8% (GC)
• form: liquid
• autoignition temp.: 725 °F
• potency: 5628 mg/kg LD₅₀, oral (Rat), 17100 mg/kg LD₅₀, skin (Rabbit)
• expl. lim.: 36 %
• technique(s): HPLC: suitable
• impurities: ≤0.0002 meq/g Acidity, ≤0.0002 meq/g Alkalinity, ≤0.05% Water
• evapn. residue: ≤1.0 mg/L
• transmittance: 225 nm, ≥50%, 265 nm, ≥98%
• 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.)
• suitability: suitable for chromatography
• application(s): food and beverages; pharmaceutical
• format: neat
• storage temp.: 2-30°C
• SMILES string: CO
• InChI: 1S/CH4O/c1-2/h2H,1H3
• InChI key: OKKJLVBELUTLKV-UHFFFAOYSA-N

Description

General description

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in "gradient grade" as well as "isocratic grade". This enables to minimize the gradient effect of the solvent involved.

Application

• The composition of chemicals and anti-osteogenic properties in the volatile extracts from Homalomena gigantea rhizome: This study highlights methanol′s role in the extraction and analysis of volatile organic compounds from medicinal plants, providing insights valuable for researchers in pharmacology and natural product chemistry (Thanh et al., 2024).



• A homochiral tartrate-bridged dinuclear chromium(III) complex anion with a resonance-assisted hydrogen bond for proton conduction: Methanol is used as a solvent in the synthesis of complex inorganic compounds, which are essential in developing new materials for energy applications, such as proton exchange membranes (Dunatov et al., 2024).

Preparation Note

Product filtered through a 0.2 μm filter

Analysis Note

Evaporation Number: 1.9

Purity (GC): ≥ 99.8 %
Identity (IR): conforms
Evaporation residue: ≤ 1.0 mg/l
Water: ≤ 0.05 %
Acidity: ≤ 0.0002 meq/g
Alkalinity: ≤ 0.0002 meq/g
Transmission (at 225 nm): ≥ 50 %
Transmission (from 265 nm): ≥ 98 %
Filtered by 0.2 µm filter

Legal Information

PREPSOLV is a trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS02,GHS06,GHS08
• signalword: Danger
• pcodes: P210 - P233 - P280 - P301 + P310 - P303 + P361 + P353 - P304 + P340 + P311
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1
• Storage Class: 3 - Flammable liquids
• wgk: WGK 2
• flash_point_f: 49.5 °F - closed cup
• flash_point_c: 9.7 °C - closed cup
• target_organs: Eyes,Central nervous system
• hcodes: H225,H301 + H311 + H331,H370