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295299 Sigma-Aldrich

Dimethyl ether

≥99%

Synonym: DME, Methyl ether

  • CAS Number 115-10-6

  • Linear Formula (CH3)2O

  • Molecular Weight 46.07

  •  Beilstein/REAXYS Number 1730743

  •  EC Number 204-065-8

  •  MDL number MFCD00008494

  •  PubChem Substance ID 24857771

  •  NACRES NA.22

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Properties

Related Categories Chemical Synthesis, Specialty Gases, Synthetic Reagents More...
Quality Level   100
vapor density   1.62 (vs air)
vapor pressure   >760 mmHg ( 25 °C)
assay   ≥99%
autoignition temp.   662 °F
expl. lim.   27 %
bp   −24.8 °C (lit.)
mp   −141 °C (lit.)
SMILES string   COC
InChI   1S/C2H6O/c1-3-2/h1-2H3
InChI key   LCGLNKUTAGEVQW-UHFFFAOYSA-N

Description

General description

Dimethyl ether (DME) is the simplest aliphatic ether used as a reactant as well as a solvent in organic synthesis. It is used as a precursor for the preparation of important useful organic compounds. DME is also used as an aerosol propellant.

Application

DME can be used as precursor for the production dimethyl sulfate by treatment with sulfur trioxide. Dimethyl sulfate is employed as a versatile methylating agent in chemical synthesis. It is also used as a starting material for preparation of dimethyl sulfide, acetic acid, unsaturated and saturated hydrocarbons, and formadehyde.

Dimethyl ether (DME) can be used as a precursor to synthesize methyl acetate, oligomeric oxymethylene ethers (OMEs), polyoxymethylene dimethyl ethers (DMMx) and light olefins.

Packaging

1 kg in Sure-Pac™

100, 400 g in Sure-Pac™

Recommended products

Brass hose adapter Z146811 or brass body mini gas regulator Z513539 is recommended.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN1033 - class 2 - Dimethyl ether
WGK Germany 
WGK 1
RTECS 
PM4780000
Flash Point(F) 
-41.8 °F - closed cup
Flash Point(C) 
-41 °C - closed cup
Protocols & Articles

Articles

A General, Efficient, and Functional-Group-Tolerant Catalyst System for the Palladium-Catalyzed Thioetherification of Aryl Bromides and Iodides

On the basis of mechanism-driven reaction design, a Pd-catalyzed nucleophilic fluorination of aryl bromides and iodides has been developed. The method exhibits a broad substrate scope, especially wit...
Keywords: Catalysis, Chromatography, Fluorinations, Ligands, Reductions

A New Biarylphosphine Ligand for the Pd-Catalyzed Synthesis of Diaryl Ethers under Mild Conditions

An efficient, general palladium catalyst for C-O bond-forming reactions of secondary and primary alcohols with a range of aryl halides has been developed using the ligand�1. Heteroaryl halides, and f...
Keywords: Chromatography, Flash chromatography, Ligands

Highly Reactive, General and Long-Lived Catalysts for Palladium-Catalyzed Amination of Heteroaryl and Aryl Chlorides, Bromides, and Iodides: Scope and Structure-Activity Relationships

Boronic acids which quickly deboronate under basic conditions, such as polyfluorophenylboronic acid and five- membered 2-heteroaromatic boronic acids, are especially chal- lenging coupling partners f...
Keywords: Ligands

Peer-Reviewed Papers
15

References

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