690295
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:
分子量:
164.59
Beilstein:
1761275
EC 号:
MDL编号:
UNSPSC代码:
12352100
PubChem化学物质编号:
NACRES:
NA.22
质量水平
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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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
此项目有
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
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
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
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