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Merck

304050

Sigma-Aldrich

原甲酸三乙酯

anhydrous, 98%

别名:

二乙氧基乙氧基乙烷, 1,1,1-三乙氧基甲烷

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100 ML
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2 L
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100 ML
$200.00
1 L
$395.00
2 L
$559.00

About This Item

线性分子式:
CH(OC2H5)3
CAS号:
分子量:
148.20
Beilstein:
605384
EC 号:
MDL编号:
UNSPSC代码:
12352001
PubChem化学物质编号:
NACRES:
NA.21

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等级

anhydrous

质量水平

蒸汽密度

5.11 (vs air)

蒸汽压

2.9 mmHg ( 20 °C)

方案

98%

表单

liquid

杂质

<0.003% water
<0.005% water (100 mL pkg)

蒸发残留物

<0.0005%

折射率

n20/D 1.391 (lit.)

沸点

146 °C (lit.)

mp

−76 °C (lit.)

密度

0.891 g/mL at 25 °C (lit.)

SMILES字符串

CCOC(OCC)OCC

InChI

1S/C7H16O3/c1-4-8-7(9-5-2)10-6-3/h7H,4-6H2,1-3H3

InChI key

GKASDNZWUGIAMG-UHFFFAOYSA-N

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应用

原甲酸三乙酯可以通过在存在氯化铝的情况下与二茂铁反应来合成:
  • 甲酰二茂铁。[1]
  • 5-硝基吡啶通过与硝基丙酮和不同烯胺的环合。[2]
  • 3-芳基-4(3H)-喹唑啉酮,通过浓硫酸催化的杂环化与邻氨基苯甲酸反应。[3]

象形图

Flame

警示用语:

Warning

危险声明

危险分类

Flam. Liq. 3

储存分类代码

3 - Flammable liquids

WGK

WGK 1

闪点(°F)

95.0 °F - closed cup

闪点(°C)

35 °C - closed cup

个人防护装备

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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One-pot synthesis of 5-nitropyridines by the cyclocondensation of nitroacetone, triethyl orthoformate and enamines
Sagitullina GP, et al.
Mendeleev Communications, 19(3), 155-156 (2009)
A new convenient method for the synthesis of formyl ferrocene with triethyl orthoformate and A1C13
Tang J, et al.
Synthetic Communications, 30(9), 1657-1660 (2000)
Synthesis of 3-Aryl-4 (3 H)-quinazolinones from Anthranilic Acids and Triethyl Orthoformate
Cao SL, et al.
Synthetic Communications, 38(13), 2227-2236 (2008)
Adenine complexes with 3d metal perchlorates from ethanol-triethyl orthoformate.
Speca AN, et al.
Inorgorganica Chimica Acta, 37, L551-L554 (1979)
Synthesis of 8-demethyl-8-hydroxy-5-deazariboflavins
Ashton WT and Brown RD
Journal of Heterocyclic Chemistry, 17(8), 1709-1712 (1980)

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

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