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Merck

281832

Sigma-Aldrich

4-甲基-3-戊烯-2-酮

technical grade, 90%

别名:

米基化氧

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100 G
$111.00

$111.00


预计发货时间2025年4月21日详情


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100 G
$111.00

About This Item

线性分子式:
(CH3)2C=CHCOCH3
CAS号:
分子量:
98.14
Beilstein:
1361550
EC 号:
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.22

$111.00


预计发货时间2025年4月21日详情


获取大包装报价

等级

technical grade

质量水平

方案

90%

表单

liquid

折射率

n20/D 1.442 (lit.)

沸点

130 °C (lit.)

mp

-41.5 °C (lit.)

密度

0.858 g/mL at 25 °C (lit.)

官能团

ketone

SMILES字符串

C\C(C)=C\C(C)=O

InChI

1S/C6H10O/c1-5(2)4-6(3)7/h4H,1-3H3

InChI key

SHOJXDKTYKFBRD-UHFFFAOYSA-N

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一般描述

氯化锌催化异亚丙基丙酮与乙酰乙酸乙酯的缩合反应已有报道 [1]

应用

异亚丙基丙酮的用途如下:
  • 在 2,3,4,5-四氢-1,3,3-三甲基安乃近的合成中,定向合成二氢卟吩和二氢卟吩的关键构件[2]
  • 咪唑涂层毛细管电泳柱制备中的中性标记物[3]

象形图

FlameSkull and crossbones

警示用语:

Danger

危险分类

Acute Tox. 3 Inhalation - Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

靶器官

Respiratory system

储存分类代码

3 - Flammable liquids

WGK

WGK 1

闪点(°F)

87.8 °F - closed cup

闪点(°C)

31 °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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Marcin Ptaszek et al.
Organic process research & development, 9(5), 651-659 (2005-01-01)
2,3,4,5-Tetrahydro-1,3,3-trimethyldipyrrin (1) is a crucial building block in the rational synthesis of chlorins and oxochlorins. The prior 5-step synthesis of 1 from pyrrole-2-carboxaldehyde (2) employed relatively simple and well-known reactions yet suffered from several drawbacks, including limited scale (>/= 0.5
Condensation of mesityl oxide with acetoacetic ester.
Surmatis JD, et al.
The Journal of Organic Chemistry, 35(4), 1053-1056 (1970)
C Y Liu et al.
Journal of chromatography. A, 897(1-2), 383-392 (2000-12-29)
An imidazole-coated capillary column for electrophoresis has been prepared by means of organosilanization. With mesityl oxide as neutral marker, the results indicated that the electroosmotic flow of the bonded phase displays a dramatic difference in pH dependence in comparison with
Christian Starkenmann
Journal of agricultural and food chemistry, 51(24), 7146-7155 (2003-11-13)
Cysteine conjugates, resulting from the addition of cysteine to alpha,beta-unsaturated carbonyl compounds, are important precursors of odorant sulfur compounds in food flavors. The aim of this work was to better understand this chemistry in the light of the unexpected double
Scott E Denmark et al.
The Journal of organic chemistry, 71(4), 1668-1676 (2006-02-14)
The mechanism of the formation of substituted quinolines from anilines and alpha,beta-unsaturated ketones has been studied by the use of 13C-labeled ketones in cross-over experiments. In the reaction of doubly labeled 13C(2,4) mesityl oxide, a 100% scrambling of the label

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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