34885

Methanol

suitable for HPLC, gradient grade, ≥99.9%

• Synonym(s): Methyl alcohol
• Linear Formula: CH₃OH
• CAS Number: 67-56-1
• Molecular Weight: 32.04
• Beilstein: 1098229
• Número de EC: 200-659-6
• Número MDL: MFCD00004595
• ID de la sustancia en PubChem: 329755085
• NACRES: NA.05

Properties

• grado: gradient grade
• Nivel de calidad: 100
• densidad de vapor: 1.11 (vs air)
• presión de vapor: 410 mmHg ( 50 °C); 97.68 mmHg ( 20 °C)
• ensayo: ≥99.9%
• formulario: liquid
• temp. de autoignición: 725 °F
• lim. expl.: 36 %
• technique(s): HPLC: suitable; immunofluorescence: suitable
• impurezas: KMnO₄ red. matter (as O), in accordance; ≤0.0005% free alkali (as NH₃); ≤0.0005% non-volatile matter; ≤0.001% acetaldehyde; ≤0.001% acetone (GC); ≤0.001% formaldehyde; ≤0.02% water (Karl Fischer); ≤1 ppb fluorescence (quinine) at 254 nm; ≤1 ppb fluorescence (quinine) at 365nm
• residuo de evap.: <0.0003%
• color: APHA: ≤10
• índice de refracción: n20/D 1.329 (lit.)
• bp: 64.7 °C (lit.)
• mp: −98 °C (lit.)
• densidad: 0.791 g/mL at 25 °C (lit.)
• HPLC-gradient: ≤2 mAU at 230 nm; ≤5 mAU at 254 nm
• absorción: in accordance
• Absorción UV: λ: 210 nm A_max: 0.50; λ: 220 nm A_max: 0.30; λ: 230 nm A_max: 0.15; λ: 235 nm A_max: 0.10; λ: 240 nm A_max: 0.05; λ: 260 nm A_max: 0.01; λ: 400 nm A_max: 0.01
• application(s): food and beverages
• SMILES string: CO
• InChI: 1S/CH4O/c1-2/h2H,1H3
• InChI key: OKKJLVBELUTLKV-UHFFFAOYSA-N

Description

Descripción general

Thermochemical conversion of methanol to C₂-C₁₀ hydrocarbons in the presence of shape-selective zeolites has been reported. Its oxidation on Ru-Pt catalyst system by ruthenium ad-atoms has been proposed.

Aplicación

Methanol (MeOH) has been used as an eluent in the HPLC estimation of malondialdehyde in plasma, which is an indicator of oxidative stress.
It may be 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.
• To compose eluent for the ion-pair reverse-phase HPLC isolation of nucleotides and their decomposition products.

Envase

100 mL in glass bottle

1, 1, 2, 2.5, 2.5, 2.5, 4, 4, 7, 10, 18, 20, 30, 45, 56, 200, 400 L

1, 1 pkg

View returnable container options.

Nota de preparación

Product filtered through a 0.2 μm filter

Otras notas

Pure-Pac^® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.

Important notice

• The article number 34885-4X2.5L-R will be discontinued. Please order the single bottle 34885-2.5L-R which is physically identical with the same exact specifications.

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Información legal

Pure-Pac is a registered trademark of Sigma-Aldrich Co. LLC

Safety Information

• pictogramas: GHS02,GHS06,GHS08
• Palabra de señalización: Danger
• Frases de peligro: H225 - H301 + H311 + H331 - H370
• Consejos de prudencia: P210 - P233 - P280 - P301 + P310 - P303 + P361 + P353 - P304 + P340 + P311
• Clasificaciones de peligro: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1
• Código de clase de almacenamiento: 3 - Flammable liquids
• WGK: WGK 2
• Punto de inflamabilidad F: 49.5 °F - closed cup
• Punto de inflamabilidad C: 9.7 °C - closed cup