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E34102

Sigma-Aldrich

(−)-Ethyl L-lactate

98%

Sinônimo(s):

(−)-Ethyl (S)-2-hydroxypropionate, (S)-(−)-2-Hydroxypropionic acid ethyl ester, L-Lactic acid ethyl ester

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R$ 262,00
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R$ 456,00
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5 G
R$ 262,00
100 G
R$ 426,00
500 G
R$ 456,00
2.5 KG
R$ 595,00

About This Item

Fórmula empírica (Notação de Hill):
C5H10O3
Número CAS:
Peso molecular:
118.13
Beilstein:
1720839
Número CE:
Número MDL:
Código UNSPSC:
12352108
ID de substância PubChem:
NACRES:
NA.22

R$ 262,00


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densidade de vapor

4.1 (vs air)

Nível de qualidade

pressão de vapor

2 mmHg ( 20 °C)
5 mmHg ( 30 °C)

Ensaio

98%

Formulário

liquid

atividade óptica

[α]14/D −10°, neat

temperatura de autoignição

752 °F

Lim. expl.

1.5 %, 100 °F

índice de refração

n20/D 1.4130 (lit.)

pH

4 (20 °C, 50 g/L)

p.e.

154 °C (lit.)

pf

−26 °C (lit.)

densidade

1.034 g/mL at 20 °C (lit.)
1.042 g/mL at 25 °C

cadeia de caracteres SMILES

C[C@H](O)C(OCC)=O

InChI

1S/C5H10O3/c1-3-8-5(7)4(2)6/h4,6H,3H2,1-2H3/t4-/m0/s1

chave InChI

LZCLXQDLBQLTDK-BYPYZUCNSA-N

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Descrição geral

Ethyl lactate is an economically viable green solvent used in organic synthesis. It is generally employed in organic reactions like multi-component reactions, cycloaddition reaction, asymmetric induction, photochemical synthesis, and ligand-free coupling reactions, etc.[1][2]

Aplicação

(−)-Ethyl L-lactate can be used in the preparation of:
  • (R)-(+)-2-methyloxirane.[3]
  • (S)-2-((tert-Butyldimethylsilyl)oxy)propanal, a key intermediate for the synthesis of maltepolides.[4]

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Eye Dam. 1 - Flam. Liq. 3 - STOT SE 3

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

3 - Flammable liquids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

128.8 °F - closed cup

Ponto de fulgor (°C)

53.8 °C - closed cup

Equipamento de proteção individual

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


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Certificados de análise (COA)

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Slide 1 of 3

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Ethyl lactate as a green solvent: a promising bio-compatible media for organic synthesis
Paul S, et al.
Current Green Chemistry, 3(1), 111-118 (2016)
Shuke Xiao et al.
eLife, 8 (2019-10-28)
Odorant binding proteins (Obps) are expressed at extremely high levels in the antennae of insects, and have long been believed essential for carrying hydrophobic odorants to odor receptors. Previously we found that when one functional type of olfactory sensillum in
A facile approach for the synthesis of C13-C24 fragments of maltepolides A, C and D
Rao, P Sankara and Srihari, P
Organic & Biomolecular Chemistry, 14(40), 9629-9638 (2016)
Ethyl lactate as a tunable solvent for the synthesis of aryl aldimines
Bennett J, et al.
Green Chemistry, 11(2), 166-168 (2009)
Stereocontrolled total synthesis of the macrocyclic lactone (-)-aspicilin.
Waanders PP, et al.
Tetrahedron Letters, 28(21), 2409-2412 (1987)

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

      Helpful?

  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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