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Merck
CN

E34102

(-)-L-乳酸乙酯

greener alternative

98%

别名:

(-)-(S)-2-羟基丙酸乙酯, (S)-(-)-2-羟基丙酸乙酯, L-乳酸乙酯

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关于此项目

经验公式(希尔记法):
C5H10O3
化学文摘社编号:
分子量:
118.13
UNSPSC Code:
12352108
NACRES:
NA.22
PubChem Substance ID:
EC Number:
211-694-1
Beilstein/REAXYS Number:
1720839
MDL number:
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产品名称

(-)-L-乳酸乙酯, 98%

InChI key

LZCLXQDLBQLTDK-BYPYZUCNSA-N

InChI

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

SMILES string

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

vapor density

4.1 (vs air)

vapor pressure

2 mmHg ( 20 °C)
5 mmHg ( 30 °C)

assay

98%

form

liquid

optical activity

[α]14/D −10°, neat

autoignition temp.

752 °F

expl. lim.

1.5 %, 100 °F

Quality Level

greener alternative product characteristics

Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

refractive index

n20/D 1.4130 (lit.)

pH

4 (20 °C, 50 g/L)

bp

154 °C (lit.)

mp

−26 °C (lit.)

density

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

greener alternative category

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Application

(−)-L-乳酸乙酯可用于制备:
  • (R)-(+)-2-甲基环氧乙烷。
  • (S)-2-((叔丁基二甲基硅基)氧基)丙醛,一种用于合成maltepolide的关键中间体。

General description

乳酸乙酯是用于有机合成的绿色环保溶剂。它通常用于多组分反应、环加成反应、不对称诱导、光化学合成和无配体偶联反应等有机反应。

Features and Benefits

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product is a safer and more sustainable alternative to ethyl acetate and acetone. It is an ester of natural L-lactic acid, which is produced by fermentation of sugar and thus aligns with "Safer Solvents and Auxiliaries" and "Use of Renewable Feedstocks". Click here for more information.

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Danger

Hazard Classifications

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

target_organs

Respiratory system

存储类别

3 - Flammable liquids

wgk

WGK 1

flash_point_f

128.8 °F - closed cup

flash_point_c

53.8 °C - closed cup

ppe

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

法规信息

危险化学品
此项目有

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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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 green solvent: a promising bio-compatible media for organic synthesis
Paul S, et al.
Current Green Chemistry, 3(1), 111-118 (2016)
Ethyl lactate as a tunable solvent for the synthesis of aryl aldimines
Bennett J, et al.
Green Chemistry, 11(2), 166-168 (2009)
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
Eduardo Coelho et al.
Molecules (Basel, Switzerland), 25(3) (2020-02-07)
Knowledge of composition of beverages volatile fraction is essential for understanding their sensory attributes. Analysis of volatile compounds predominantly resorts to gas chromatography coupled with mass spectrometry (GC-MS). Often a previous concentration step is required to quantify compounds found at

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