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Merck

271012

Sigma-Aldrich

N,N-二甲基乙酰胺

anhydrous, 99.8%

别名:

DMAc

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About This Item

线性分子式:
CH3CON(CH3)2
CAS号:
分子量:
87.12
Beilstein:
1737614
EC號碼:
MDL號碼:
分類程式碼代碼:
12352111
PubChem物質ID:
NACRES:
NA.21
等級:
anhydrous
化驗:
99.8%
bp:
164.5-166 °C (lit.)
蒸汽壓力:
2 mmHg ( 25 °C)
4 mmHg ( 38 °C)
价格与库存信息目前不能提供

等級

anhydrous

品質等級

蒸汽密度

3 (vs air)

蒸汽壓力

2 mmHg ( 25 °C)
4 mmHg ( 38 °C)

化驗

99.8%

形狀

liquid

自燃溫度

914 °F

expl. lim.

1.8 %, 100 °F
11.5 %, 160 °F

雜質

<0.005% water

蒸發殘留物

<0.001%

折射率

n20/D 1.437 (lit.)

pH值

4 (20 °C, 200 g/L)

bp

164.5-166 °C (lit.)

mp

−20 °C (lit.)

密度

0.937 g/mL at 25 °C (lit.)

SMILES 字串

CN(C)C(C)=O

InChI

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

InChI 密鑰

FXHOOIRPVKKKFG-UHFFFAOYSA-N

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應用

N,N-二甲基乙酰胺可用作下列过程的溶剂:
  • 乙酸钯-正丁基二(1-金刚烷基)膦催化2-异丁基噻唑与氯苯的芳基化反应,形成5-苯基-2-异丁基噻唑。[1]
  • 合成β-、γ-和δ-金属酯中间体,其可与酰氯化合物反应生成γ-、δ-和ε-酮酯。[2]
  • 合成(R)-(-)-甲基-1,1′-联萘-2,2′-二基磷酸酯,其可用作制备(R)-(+)-1,1′-联萘-2,2′-二醇的前体。[3]

其他說明

货号271012-4X2L的产品即将停产。请订购271012-2L单瓶装,因为其物理参数与上述产品本质相同。

相關產品

产品编号
说明
价格

象形圖

Health hazardExclamation mark

訊號詞

Danger

危險分類

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

儲存類別代碼

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

水污染物質分類(WGK)

WGK 2

閃點(°F)

147.2 °F - closed cup

閃點(°C)

64 °C - closed cup

個人防護裝備

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


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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访问文档库

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)
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

商品

Preformed catalysts in the kit are stable but become air-sensitive when activated; Schlenk technique aids scale-up.

Preformed catalysts in the kit are stable but become air-sensitive when activated; Schlenk technique aids scale-up.

Preformed catalysts in the kit are stable but become air-sensitive when activated; Schlenk technique aids scale-up.

Preformed catalysts in the kit are stable but become air-sensitive when activated; Schlenk technique aids scale-up.

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

      Helpful?

  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

      Helpful?

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