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690295

Sigma-Aldrich

4-Chlor-acetessigsäure-ethylester

Arxada quality, ≥97.0% (GC)

Synonym(e):

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

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About This Item

Lineare Formel:
ClCH2COCH2CO2C2H5
CAS-Nummer:
638-07-3
Molekulargewicht:
164.59
Beilstein:
1761275
EG-Nummer:
211-317-0
MDL-Nummer:
MFCD00000939
UNSPSC-Code:
12352100
PubChem Substanz-ID:
329761327
NACRES:
NA.22

Assay

≥97.0% (GC)

Form

liquid

Qualität

Arxada quality

Hersteller/Markenname

Arxada AG

Verunreinigungen

≤0.04% metyl-4-chloroacetoacetate

Brechungsindex

n20/D 1.452 (lit.)

bp

115 °C/14 mmHg (lit.)

Dichte

1.218 g/mL at 25 °C (lit.)

Lagertemp.

2-8°C

SMILES String

CCOC(=O)CC(=O)CCl

InChI

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

InChIKey

OHLRLMWUFVDREV-UHFFFAOYSA-N

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Signalwort

Danger

Gefahreneinstufungen

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

Lagerklassenschlüssel

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

WGK

WGK 3

Flammpunkt (°F)

206.6 °F - closed cup

Flammpunkt (°C)

97 °C - closed cup

Persönliche Schutzausrüstung

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
BCBN7148V
BCBJ3283V
BCBF0500V
BCBN6337V
1410459

Die passende Version wird nicht angezeigt?

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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
Zhinan Xu et al.
Applied microbiology and biotechnology, 70(1), 40-46 (2005-09-22)
Escherichia coli M15 (pQE30-car0210) was constructed to express carbonyl reductase (CAR) by cloning the car gene from Candida magnoliae and inserting it into pQE30. By cultivating E. coli M15 (pQE30-car0210) and M15 (pQE30-gdh0310), 8.2-fold and 12.3-fold enhancements in specific enzymatic
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
Y Saratani et al.
Bioscience, biotechnology, and biochemistry, 65(7), 1676-1679 (2001-08-23)
The enantioselectivity of ECAA to ECHB by eight fungi of four genus was evaluated. All strains showed (S)-selectivity, and Cylindrocarpon sclerotigenum IFO 31855 gave the highest yield and good optical purity (e.e.; >99%). Cell-free extract and acetone-dried cells of C.
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
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