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Merck

194905

Sigma-Aldrich

12-冠醚-4

98%

别名:

1,4,7,10-四氧环十二烷

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About This Item

经验公式(希尔记法):
C8H16O4
CAS号:
分子量:
176.21
Beilstein:
1363064
EC號碼:
MDL號碼:
分類程式碼代碼:
12352005
PubChem物質ID:
NACRES:
NA.22

品質等級

化驗

98%

形狀

liquid

折射率

n20/D 1.463 (lit.)

bp

61-70 °C/0.5 mmHg (lit.)

mp

16 °C (lit.)

密度

1.089 g/mL at 25 °C (lit.)

官能基

ether

SMILES 字串

C1COCCOCCOCCO1

InChI

1S/C8H16O4/c1-2-10-5-6-12-8-7-11-4-3-9-1/h1-8H2

InChI 密鑰

XQQZRZQVBFHBHL-UHFFFAOYSA-N

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一般說明

12-冠醚-4是一种冠醚,通常用作配位化学中的配体。由于对锂阳离子具有很强的特异性螯合能力,它还是一种锂离子载体。

應用

12-冠醚-4可用作:
  • 通过阴离子开环聚合反应以六乙基环三硅氧烷单体和NaOH催化剂合成聚(二乙基硅氧烷) (PDES)
  • 作为添加剂用于通过芳基溴与二芳基甲烷之间的钯催化交叉偶联反应制备三芳基甲烷衍生物
  • 有机合成中的相转移催化剂

象形圖

Skull and crossbones

訊號詞

Danger

危險聲明

危險分類

Acute Tox. 1 Inhalation

儲存類別代碼

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

水污染物質分類(WGK)

WGK 3

閃點(°F)

235.4 °F - closed cup

閃點(°C)

113 °C - closed cup

個人防護裝備

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


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分析证书(COA)

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Ana I Ojeda-Amador et al.
Dalton transactions (Cambridge, England : 2003), 46(19), 6392-6403 (2017-05-04)
The structural chemistry of eleven donor complexes of the important Brønsted base potassium 1,1,1,3,3,3-hexamethyldisilazide (KHMDS) has been studied. Depending on the donor, each complex adopted one of five general structural motifs. Specifically, in this study the donors employed were toluene
Preparation of poly (diethylsiloxane) with the NaOH/12-crown-4 catalyst
Hedden RC and Cohen C
Polymer, 41(18), 6975-6979 (2000)
Mazhar Ali Abbasi et al.
Sensors (Basel, Switzerland), 12(11), 15424-15437 (2012-12-04)
In this study honeycomb-like NiO nanostructures were grown on nickel foam by a simple hydrothermal growth method. The NiO nanostructures were characterized by field emission electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD) techniques. The
Zehra Edis et al.
Pathogens (Basel, Switzerland), 8(4) (2019-10-30)
Antimicrobial agents containing symmetrical triiodides complexes with halogen bonding may release free iodine molecules in a controlled manner. This happens due to interactions with the plasma membrane of microorganisms which lead to changes in the structure of the triiodide anion.
Multilayered ion-imprinted membranes with high selectivity towards Li+ based on the synergistic effect of 12-crown-4 and polyether sulfone
Lu J, et al.
Applied Surface Science, 427, 931-941 (2018)

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