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Merck
CN

690295

Sigma-Aldrich

4-氯乙酰乙酸乙酯

Arxada quality, ≥97.0% (GC)

别名:

4-Chloro acetoethylacetate, Ethyl 4-chloro-3-oxobutanoate, Ethyl chloroacetoacetate

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关于此项目

线性分子式:
ClCH2COCH2CO2C2H5
化学文摘社编号:
638-07-3
分子量:
164.59
Beilstein:
1761275
EC 号:
211-317-0
MDL编号:
MFCD00000939
UNSPSC代码:
12352100
PubChem化学物质编号:
329761327
NACRES:
NA.22

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质量水平

100

方案

≥97.0% (GC)

表单

liquid

质量

Arxada quality

制造商/商品名称

Arxada AG

杂质

≤0.04% metyl-4-chloroacetoacetate

折射率

n20/D 1.452 (lit.)

沸点

115 °C/14 mmHg (lit.)

密度

1.218 g/mL at 25 °C (lit.)

储存温度

2-8°C

SMILES字符串

CCOC(=O)CC(=O)CCl

InChI

1S/C6H9ClO3/c1-2-10-6(9)3-5(8)4-7/h2-4H2,1H3

InChI key

OHLRLMWUFVDREV-UHFFFAOYSA-N

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相关类别

警示用语：

Danger

危险分类

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1B

储存分类代码

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

WGK

WGK 3

闪点(°F)

206.6 °F - closed cup

闪点(°C)

97 °C - closed cup

个人防护装备

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

法规信息

新产品

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCBN7148V
BCBJ3283V
BCBF0500V
BCBN6337V
1410459

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K Kita et al.
Applied and environmental microbiology, 65(12), 5207-5211 (1999-12-03)
We cloned and sequenced the gene encoding an NADPH-dependent aldehyde reductase (ARII) in Sporobolomyces salmonicolor AKU4429, which reduces ethyl 4-chloro-3-oxobutanoate (4-COBE) to ethyl (S)-4-chloro-3-hydroxybutanoate. The ARII gene is 1,032 bp long, is interrupted by four introns, and encodes a 37,315-Da
M Kataoka et al.
Applied microbiology and biotechnology, 51(4), 486-490 (1999-05-26)
The asymmetric reduction of ethyl 4-chloro-3-oxobutanoate (COBE) to ethyl (R)-4-chloro-3-hydroxybutanoate [(R)-CHBE] using Escherichia coli cells, which coexpress both the aldehyde reductase gene from Sporobolomyces salmonicolor and the glucose dehydrogenase (GDH) gene from Bacillus megaterium as a catalyst was investigated. In
Li-Juan Wang et al.
Bioresource technology, 102(14), 7023-7028 (2011-05-17)
An NADH-dependent reductase (ScCR) from Streptomyces coelicolor was discovered by genome mining for carbonyl reductases. ScCR was overexpressed in Escherichia coli BL21, purified to homogeneity and its catalytic properties were studied. This enzyme catalyzed the asymmetric reduction of a broad
H Yamamoto et al.
Applied microbiology and biotechnology, 67(1), 33-39 (2004-09-01)
Formate dehydrogenases (FDH) are useful for the regeneration of NADH, which is required for asymmetric reduction by several dehydrogenases and reductases. FDHs have relatively low activity and are labile, especially to alpha-haloketones, thus FDH cannot be applied to the industrial
Hou Cao et al.
Bioresource technology, 102(2), 1733-1739 (2010-10-12)
A novel NADH-dependent dehydrogenases/reductases (SDRs) superfamily reductase (PsCRII) was isolated from Pichia stipitis. It produced ethyl (S)-4-chloro-3-hydroxybutanoate [(S)-CHBE] in greater than 99% enantiomeric excess. This enzyme was purified to homogeneity by ammonium sulfate precipitation followed by Q-Sepharose chromatography. Compared to
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Knoevenagel Condensation Reaction

Knoevenagel Condensation is an organic reaction named after Emil Knoevenagel. It is a classic C-C bond formation reaction and a modification of the Aldol Condensation.

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