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198242

Sigma-Aldrich

四氢吡喃酮

99%

别名:

四氢-4H-吡喃-4-酮

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About This Item

经验公式（希尔记法）:
C5H8O2
CAS号:
29943-42-8
分子量:
100.12
Beilstein:
106463
EC 号:
249-967-2
MDL编号:
MFCD00006581
UNSPSC代码:
12352100
PubChem化学物质编号:
24851869
NACRES:
NA.22
价格与库存信息目前不能提供

方案

99%

表单

liquid

折射率

n20/D 1.452 (lit.)

沸点

166-166.5 °C (lit.)

密度

1.084 g/mL at 25 °C (lit.)

官能团

ether
ketone

SMILES字符串

O=C1CCOCC1

InChI

1S/C5H8O2/c6-5-1-3-7-4-2-5/h1-4H2

InChI key

JMJRYTGVHCAYCT-UHFFFAOYSA-N

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象形图

Flame
GHS02

警示用语：

Warning

危险声明

H226

预防措施声明

P210

危险分类

Flam. Liq. 3

储存分类代码

3 - Flammable liquids

WGK

WGK 3

闪点(°F)

131.0 °F - closed cup

闪点(°C)

55 °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
SDBB1129
BCCC6559
BCCB4395
BCBT1417
BCBQ6678V

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Synthesis, 672-672 (1994)
Tetrahedron Letters, 33, 7701-7701 (1992)
Bryan Ringstrand et al.
Beilstein journal of organic chemistry, 7, 386-393 (2011-04-23)
The methodology to prepare 3-substituted 1,5-dibromopentanes I and their immediate precursors, which include 3-substituted 1,5-pentanediols VII or 4-substituted tetrahydropyrans VIII, is surveyed. Such dibromides I are important intermediates in the preparation of liquid crystalline derivatives containing 6-membered heterocyclic rings. Four
R K Anderson et al.
The Journal of antibiotics, 46(2), 331-342 (1993-02-01)
Syntheses are described for penicillins (4b approximately 4i, 5a and 5b) which possess a 6 beta-(2-heteroaryl-3-substituted)-propenamido side-chain of fixed geometry. In vitro results for these compounds against a range of Gram-positive and Gram-negative bacteria showed in most cases good stability
Kun Huang et al.
The Journal of organic chemistry, 71(21), 8320-8323 (2006-10-10)
As the first example for the synthesis of optically active alpha-hydroxyaldehydes and alpha-hydroxyketones in ionic liquids, we applied RTILs into L-proline catalyzed direct enantioselective alpha-aminoxylation of both aldehydes and ketones successfully. This protocol features a number of advantages, such as
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  1. 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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  2. 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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