69799

Sigma-Aldrich

(−)-Ethyl L-lactate

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

Synonym(s):
(S)-(−)-2-Hydroxypropionic acid ethyl ester, (−)-Ethyl (S)-2-hydroxypropionate, L-Lactic acid ethyl ester
Empirical Formula (Hill Notation):
C5H10O3
CAS Number:
Molecular Weight:
118.13
Beilstein/REAXYS Number:
1720839
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

vapor density

4.1 (vs air)

vapor pressure

2 mmHg ( 20 °C)
5 mmHg ( 30 °C)

grade

purum

assay

≥98.0% (sum of enantiomers, GC)

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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Related Categories

Packaging

1 L in glass bottle
250 mL in glass bottle

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

hazcat

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

Target Organs

Respiratory system

storage_class_code

3 - Flammable liquids

WGK Germany

WGK 1

Flash Point(F)

128.8 °F - closed cup

Flash Point(C)

53.8 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

S.D. Burke et al.
Tetrahedron Letters, 28, 4143-4143 (1987)
J. Gombos et al.
Chemische Berichte, 109, 2645-2645 (1976)
L. Banfi et al.
The Journal of Organic Chemistry, 49, 3784-3784 (1984)
B. Seuring et al.
Helvetica Chimica Acta, 60, 1175-1175 (1977)
Glial Metabolic Rewiring Promotes Axon Regeneration and Functional Recovery in the Central Nervous System.
Li, et al.
Cell Metabolism, 32, 767-785 (2021)

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