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690295

Sigma-Aldrich

Ethyl 4-chloroacetoacetate

Arxada quality, ≥97.0% (GC)

Sinônimo(s):

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

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About This Item

Fórmula linear:
ClCH2COCH2CO2C2H5
Número CAS:
638-07-3
Peso molecular:
164.59
Beilstein:
1761275
Número CE:
211-317-0
Número MDL:
MFCD00000939
Código UNSPSC:
12352100
ID de substância PubChem:
329761327
NACRES:
NA.22

Ensaio

≥97.0% (GC)

forma

liquid

qualidade

Arxada quality

fabricante/nome comercial

Arxada AG

Impurezas

≤0.04% metyl-4-chloroacetoacetate

índice de refração

n20/D 1.452 (lit.)

pb

115 °C/14 mmHg (lit.)

densidade

1.218 g/mL at 25 °C (lit.)

temperatura de armazenamento

2-8°C

cadeia de caracteres SMILES

CCOC(=O)CC(=O)CCl

InChI

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

chave InChI

OHLRLMWUFVDREV-UHFFFAOYSA-N

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Palavra indicadora

Danger

Frases de perigo

H301 + H311,H314,H411

Classificações de perigo

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

Código de classe de armazenamento

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

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

206.6 °F - closed cup

Ponto de fulgor (°C)

97 °C - closed cup

Equipamento de proteção individual

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

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Certificados de análise (COA)

Lot/Batch Number
BCBN7148V
BCBJ3283V
BCBF0500V
BCBN6337V
1410459

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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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