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185884

Sigma-Aldrich

N,N-Dimetilacetamida

ReagentPlus®, ≥99%

Sinónimos:

DMAc

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About This Item

Fórmula lineal:
CH3CON(CH3)2
Número de CAS:
127-19-5
Peso molecular:
87.12
Beilstein:
1737614
Número CE:
204-826-4
Número MDL:
MFCD00008686
Código UNSPSC:
12352111
eCl@ss:
39031204
ID de la sustancia en PubChem:
329751718
NACRES:
NA.21
En este momento no podemos mostrarle ni los precios ni la disponibilidad

densidad de vapor

3 (vs air)

Nivel de calidad

100

presión de vapor

2 mmHg ( 25 °C)
4 mmHg ( 38 °C)

Línea del producto

ReagentPlus®

Ensayo

≥99%

Formulario

liquid

temp. de autoignición

914 °F

lim. expl.

1.8 %, 100 °F
11.5 %, 160 °F

índice de refracción

n20/D 1.437 (lit.)

pH

4 (20 °C, 200 g/L)

bp

164.5-166 °C (lit.)

mp

−20 °C (lit.)

densidad

0.937 g/mL at 25 °C (lit.)

cadena SMILES

CN(C)C(C)=O

InChI

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

Clave InChI

FXHOOIRPVKKKFG-UHFFFAOYSA-N

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Descripción general

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.[1]

Aplicación

N,N-Dimethylacetamide (DMAc) has been employed as an organic solvent for the liquid-phase exfoliation of pristine graphene from bulk graphite.[2]
It may be used to compose the solvent system along with lithium chloride (LiCl) for the dissolution of commercial rayon grade cellulose.[3] DMAc/LiCl solvent mixtures have been used for the preparation of chitin, cellulose and polyimide fibers and films.[4]
N,N-Dimethylacetamide may be used in the preparation of α-lithio N,N-dimethylacetamide.[5] DMAc along with palladium chloride forms an efficient catalytic system for the oxidation of several internal olefins to carbonyl compounds without undergoing isomerization.[6]

Información legal

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

Pictogramas

Health hazardExclamation mark
GHS08,GHS07

Palabra de señalización

Danger

Frases de peligro

H312 + H332,H319,H360D

Clasificaciones de peligro

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

Código de clase de almacenamiento

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

Clase de riesgo para el agua (WGK)

WGK 2

Punto de inflamabilidad (°F)

147.2 °F - closed cup

Punto de inflamabilidad (°C)

64 °C - closed cup

Equipo de protección personal

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificados de análisis (COA)

Lot/Batch Number
SHBS4539
SHBR9660
BCCM4131
BCCM6596
BCCL2559

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Wacker-Type Oxidation of Internal Olefins Using a PdCl2/N,N-Dimethylacetamide Catalyst System under Copper-Free Reaction Conditions.
Mitsudome T, et al.
Angewandte Chemie (International Edition in English), 49(7), 1238-1240 (2010)
Isolation and reactions of. alpha.-lithio N, N-dimethylacetamide.
Woodbury RP and Rathke MW
The Journal of Organic Chemistry, 42(10), 1688-1690 (1977)
B Tosh et al.
Carbohydrate research, 327(3), 345-352 (2000-08-17)
Commercial rayon grade cellulose was dissolved in the lithium chloride-N,N-dimethylacetamide (LiCl-DMAc) solvent system and esterified with acetic anhydride using p-toluenesulfonyl chloride (p-TsCl) and pyridine as catalysts. The reaction temperature was varied from 28 to 70 degrees C and the time
Transparent conductive electrodes.
YK and Chen J.
Materials for Flexible and Printed Electronics , 1(840), 6-6 (2014)
Solution studies of cellulose in lithium chloride and N,N-dimethylacetamide.
McCormick CL, et al.
Macromolecules, 18(12), 2394-2401 (1985)
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Questions

1–2 of 2 Questions  

  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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