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Key Documents

271012

Sigma-Aldrich

N,N-Dimethylacetamide

anhydrous, 99.8%

Synonym(s):

DMAc

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About This Item

Linear Formula:
CH3CON(CH3)2
CAS Number:
Molecular Weight:
87.12
Beilstein:
1737614
EC Number:
MDL number:
UNSPSC Code:
12352111
PubChem Substance ID:
NACRES:
NA.21
grade:
anhydrous
Assay:
99.8%
bp:
164.5-166 °C (lit.)
vapor pressure:
2 mmHg ( 25 °C)
4 mmHg ( 38 °C)
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grade

anhydrous

Quality Level

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.[1]
  • Synthesis of β-, γ-, and δ-metallo ester intermediates that can react with acid chlorides to form γ-, δ-, and ε-keto esters.[2]
  • 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.[3]

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.

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Pictograms

Health hazardExclamation mark

Signal Word

Danger

Hazard Statements

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

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Certificates of Analysis (COA)

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Ethyl 5-oxo-6-methyl-6-heptenoate from methacryloyl chloride and ethyl 4-iodobutyrate
Yoshinao T, et al
Organic Syntheses, 67, 98-98 (1989)
(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)
Solutions of cellulose in N, N-dimethylacetamide/lithium chloride studied by light scattering methods.
Roder T, et al.
Polymer, 42(16), 6765-6773 (2001)
Tony Reid et al.
The Lancet. Oncology, 16(9), 1133-1142 (2015-08-25)
Epigenetic alterations have been strongly associated with tumour formation and resistance to chemotherapeutic drugs, and epigenetic modifications are an attractive target in cancer research. RRx-001 is activated by hypoxia and induces the generation of reactive oxygen and nitrogen species that

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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