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About This Item
Linear Formula:
CH3OH
CAS Number:
Molecular Weight:
32.04
UNSPSC Code:
12191601
NACRES:
NA.22
MDL number:
Beilstein/REAXYS Number:
1098229
Assay:
99.8%
Grade:
anhydrous
Bp:
64.7 °C (lit.)
Vapor pressure:
410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C)
Product Name
Methanol, anhydrous, 99.8%
grade
anhydrous
Quality Segment
vapor density
1.11 (vs air)
vapor pressure
410 mmHg ( 50 °C), 97.68 mmHg ( 20 °C)
assay
99.8%
autoignition temp.
725 °F
expl. lim.
36 %
refractive index
n
bp
64.7 °C (lit.)
mp
−98 °C (lit.)
density
0.791 g/mL at 25 °C (lit.)
format
neat
SMILES string
CO
InChI
1S/CH4O/c1-2/h2H,1H3
InChI key
OKKJLVBELUTLKV-UHFFFAOYSA-N
General description
Our anhydrous solvents deliver exceptionally low water content, making them the ideal choice for moisture-sensitive laboratory applications. Packaged in the exclusive Sure/Seal™ septum bottle system, they are reliably protected against moisture ingress from first use to last drop. The innovative Sure/Seal™ closure combines an advanced plug-style liner with an airtight elastomer and crimp cap design to ensure consistent product integrity. Three unique liner materials provide optimal chemical compatibility across a broad range of solvents. Sure/Seal™ packaging is proven to maintain anhydrous conditions even after repeated punctures. With more than 70 products across all major solvent families, available in pack sizes from 100 mL to 2 L, the portfolio meets virtually every laboratory need. By choosing ready-to-use anhydrous solvents in Sure/Seal™ packaging, researchers eliminate the need for time-consuming and hazardous in-house solvent drying and distillation - saving time, reducing risk, and improving reproducibility.
Application
Anhydrous solvents in Sure/Seal™ packaging are essential wherever water contamination would compromise experimental results. They are widely used in moisture-sensitive applications such as organic synthesis - including Grignard reactions, organometallic chemistry, and catalysis - as well as in peptide, oligonucleotide, and pharmaceutical synthesis.
Legal Information
Sure/Seal is a trademark of Sigma-Aldrich Co. LLC
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Target Organs
Eyes,Central nervous system
Hazard Codes
Signal Word
Danger
Precautionary Statements
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
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