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D152927

Sigma-Aldrich

Dimethyl carbonate

greener alternative

ReagentPlus®, 99%

Synonym(s):

Carbonic acid dimethyl ester

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100 ML
MYR 186.00
500 ML
MYR 618.00
1 L
MYR 1,091.00
4 L
MYR 2,233.00

MYR 186.00


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100 ML
MYR 186.00
500 ML
MYR 618.00
1 L
MYR 1,091.00
4 L
MYR 2,233.00

About This Item

Linear Formula:
(CH3O)2CO
CAS Number:
Molecular Weight:
90.08
Beilstein:
635821
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21
Assay:
99%
Bp:
90 °C (lit.)
Vapor pressure:
18 mmHg ( 21.1 °C)

MYR 186.00


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vapor density

3.1 (vs air)

Quality Level

vapor pressure

18 mmHg ( 21.1 °C)

product line

ReagentPlus®

Assay

99%

form

liquid

greener alternative product characteristics

Less Hazardous Chemical Syntheses
Safer Solvents and Auxiliaries
Design for Degradation
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sustainability

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dilution

(for general lab use)

refractive index

n20/D 1.368 (lit.)

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This Item
B88209364789441457
assay

98%

assay

≥99%

assay

96%

assay

97%

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

100

bp

71-72 °C/11 mmHg (lit.)

bp

97-98 °C (lit.)

bp

65 °C/11 mmHg (lit.)

bp

-

density

0.954 g/mL at 25 °C (lit.)

density

0.866 g/mL at 20 °C (lit.)

density

1.221 g/mL at 25 °C (lit.)

density

-

refractive index

n20/D 1.419 (lit.)

refractive index

n20/D 1.386 (lit.)

refractive index

n20/D 1.456 (lit.)

refractive index

-

mp

-38 °C (lit.)

mp

-

mp

21 °C (lit.)

mp

157-163 °C (lit.)

General description

Dimethyl carbonate (DMC) is a versatile, non-toxic, biodegradable reagent with tunable chemical reactivity. It serves as a green alternative to dimethyl sulfate or methyl halides and phosgene for methylation and carboxylation reactions.[1] The base-catalyzed reaction between carbon dioxide and methanol to form DMC has been studied.[2] Various thermodynamic parameters of DMC have been reported.[3]

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Application

Dimethyl carbonate may be used to synthesize:
  • Methyl phenyl carbonate by transesterification with phenol.[4]
  • Diphenyl carbonate by transesterification with methyl phenyl carbonate.[4]
  • Methyl carbamates, a raw material for isocyanate synthesis.[4]
  • Tetramethoxysilane by reacting with silica at 550-600K.[4]

Features and Benefits

Greener solvent

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Flame

Signal Word

Danger

Hazard Statements

Hazard Classifications

Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

60.8 °F - closed cup

Flash Point(C)

16 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Synthesis of (S)-Tert-Butyl 3-Hydroxybutyrate by Asymmetric Reduction of Tert-Butyl Acetoacetate with Saccharomyces cerevisiae B5.
Ou ZM, et al.
Advanced Materials Research, 704 (2013)
Enzymatic Synergism in the Synthesis of ?-Keto Esters.
Wisniewska C, et al.
European Journal of Organic Chemistry, 24, 5432-5437 (2015)
Highly enantioselective Mannich reactions of imines with tert-butyl acetoacetate catalyzed by squaramide organocatalyst.
He HX and Du DM.
Tetrahedron Asymmetry, 25(8), 637-643 (2014)
Transacetoacetylation with tert-butyl acetoacetate: synthetic applications.
Witzeman JS and Nottingham WD.
The Journal of Organic Chemistry, 56(5), 1713-1718 (1991)
Transesterification.
Otera J.
Chemical Reviews, 93(4), 1449-1470 (1993)

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