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69799

Sigma-Aldrich

(−)-Ethyl L-lactate

purum, ≥98.0% (sum of enantiomers, GC)

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Synonym(s):
(−)-Ethyl (S)-2-hydroxypropionate, (S)-(−)-2-Hydroxypropionic acid ethyl ester, L-Lactic acid ethyl ester
Empirical Formula (Hill Notation):
C5H10O3
CAS Number:
687-47-8
Molecular Weight:
118.13
Beilstein:
1720839
EC Number:
211-694-1
MDL number:
MFCD00004518
UNSPSC Code:
12352108
PubChem Substance ID:
329761971
NACRES:
NA.22

vapor density

4.1 (vs air)

Quality Level

100

vapor pressure

2 mmHg ( 20 °C)
5 mmHg ( 30 °C)

grade

purum

Assay

≥98.0% (sum of enantiomers, GC)

form

liquid

optical purity

enantiomeric excess: ≥97.5:2.5

autoignition temp.

752 °F

expl. lim.

1.5 %, 100 °F

refractive index

n20/D 1.4130 (lit.)
n20/D 1.413

bp

154 °C (lit.)

mp

−26 °C (lit.)

density

1.034 g/mL at 20 °C (lit.)

SMILES string

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

InChI key

LZCLXQDLBQLTDK-BYPYZUCNSA-N

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Other Notes

Important starting material for the synthesis of many chiral building blocks, e.g. (S)-1,2-propanediol and (S)-propylene oxide; O-Protection and reduction to the aldehyde

Signal Word

Danger

Hazard Statements

H226,H318,H335

Hazard Classifications

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

Target Organs

Respiratory system

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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L. Banfi et al.
The Journal of Organic Chemistry, 49, 3784-3784 (1984)
S.D. Burke et al.
Tetrahedron Letters, 28, 4143-4143 (1987)
B. Seuring et al.
Helvetica Chimica Acta, 60, 1175-1175 (1977)
J. Gombos et al.
Chemische Berichte, 109, 2645-2645 (1976)
Feng Li et al.
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Axons in the mature central nervous system (CNS) fail to regenerate after axotomy, partly due to the inhibitory environment constituted by reactive glial cells producing astrocytic scars, chondroitin sulfate proteoglycans, and myelin debris. We investigated this inhibitory milieu, showing that
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