Merck
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185884

Sigma-Aldrich

N,N-Dimethylacetamide

ReagentPlus®, ≥99%

Synonym(s):
DMAc
Linear Formula:
CH3CON(CH3)2
CAS Number:
Molecular Weight:
87.12
Beilstein:
1737614
EC Number:
MDL number:
eCl@ss:
39031204
PubChem Substance ID:
NACRES:
NA.21

Quality Level

vapor density

3 (vs air)

vapor pressure

2 mmHg ( 25 °C)
4 mmHg ( 38 °C)

product line

ReagentPlus®

assay

≥99%

form

liquid

autoignition temp.

914 °F

expl. lim.

1.8 %, 100 °F
11.5 %, 160 °F

refractive index

n20/D 1.437 (lit.)

pH

4 (20 °C, 200 g/L)

bp

164.5-166 °C (lit.)

mp

−20 °C (lit.)

density

0.937 g/mL at 25 °C (lit.)

SMILES string

CN(C)C(C)=O

InChI

1S/C4H9NO/c1-4(6)5(2)3/h1-3H3

InChI key

FXHOOIRPVKKKFG-UHFFFAOYSA-N

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General description

N,N-Dimethylacetamide (DMAc) is widely used to compose the solvent mixtures for cellulose. Static and dynamic light scattering studies of the cellulose dissolved in varying concentrations of DMAc/LiCl mixtures have been reported.

Application

N,N-Dimethylacetamide (DMAc) has been employed as an organic solvent for the liquid-phase exfoliation of pristine graphene from bulk graphite.
It may be used to compose the solvent system along with lithium chloride (LiCl) for the dissolution of commercial rayon grade cellulose. DMAc/LiCl solvent mixtures have been used for the preparation of chitin, cellulose and polyimide fibers and films.
N,N-Dimethylacetamide may be used in the preparation of α-lithio N,N-dimethylacetamide. DMAc along with palladium chloride forms an efficient catalytic system for the oxidation of several internal olefins to carbonyl compounds without undergoing isomerization.

Packaging

500, 6×500 mL in glass bottle
2.5 L in glass bottle

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Pictograms

Exclamation markHealth hazard

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Repr. 1B

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

Flash Point(F)

147.2 °F - closed cup

Flash Point(C)

64 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

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