271012

Sigma-Aldrich

N,N-Dimethylacetamide

anhydrous, 99.8%

Synonym(s):
DMAc
Linear Formula:
CH3CON(CH3)2
CAS Number:
Molecular Weight:
87.12
Beilstein/REAXYS Number:
1737614
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21
Pricing and availability is not currently available.

Quality Level

grade

anhydrous

vapor density

3 (vs air)

vapor pressure

2 mmHg ( 25 °C)
4 mmHg ( 38 °C)

assay

99.8%

form

liquid

autoignition temp.

914 °F

expl. lim.

1.8 %, 100 °F
11.5 %, 160 °F

impurities

<0.005% water

evapn. residue

<0.001%

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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Application

N,N-Dimethylacetamide may be used as a solvent in the following processes:
  • Palladium (II) acetate-butyldi-1-adamantylphosphine catalyzed arylation of 2-isobutylthiazole with chlorobenzene to form 5-phenyl-2-isobutylthiazole.
  • Synthesis of β-, γ-, and δ-metallo ester intermediates that can react with acid chlorides to form γ-, δ-, and ε-keto esters.
  • Synthesis of (R)-(-)-methyl 1,1′-binaphthyl-2,2′-diylphosphate that can be used as a precursor for preparing (R)-(+)-1,1′-binaphthalene-2,2′-diol.

Packaging

1, 6×1, 2, 4×2 L in Sure/Seal™
100, 12×100, 250 mL in Sure/Seal™
200 L in Pure-Pac™ 1

Other Notes

The article number 271012-4X2L will be discontinued. Please order the single bottle 271012-2L which is physically identical with the same exact specifications.

Pictograms

Exclamation markHealth hazard

Signal Word

Danger

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Hazard Codes

T

Risk Statement

61-20/21-36

Safety Statement

53-45

WGK Germany

WGK 2

Flash Point(F)

147.2 °F - closed cup

Flash Point(C)

64 °C - closed cup

(R)-(+)-1,1'-Binaphthalene-2,2'-diol
Truesdale LK
Organic Syntheses, 67, 13-13 (1989)
Density and Viscosity Measurements for Binary Mixtures of 1-Ethyl-3-methylimidazolium Tetrafluoroborate ([Emim][BF4]) with Dimethylacetamide, Dimethylformamide, and Dimethyl Sulfoxide.
Fan XH, et al.
Journal of Chemical and Engineering Data (2016)
Ethyl 5-oxo-6-methyl-6-heptenoate from methacryloyl chloride and ethyl 4-iodobutyrate
Yoshinao T, et al
Organic Syntheses, 67, 98-98 (1989)
Solutions of cellulose in N, N-dimethylacetamide/lithium chloride studied by light scattering methods.
Roder T, et al.
Polymer, 42(16), 6765-6773 (2001)
Inês Farinha et al.
Carbohydrate polymers, 130, 455-464 (2015-06-17)
Purified chitin-glucan complex (CGCpure) was extracted from Komagataella pastoris biomass using a hot alkaline treatment, followed by neutralization and repeated washing with deionized water. The co-polymer thus obtained had a β-glucan:chitin molar ratio of 75:25 and low protein and inorganic...
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