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E34102 Sigma-Aldrich

(−)-Ethyl L-lactate

98%

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

  • CAS Number 687-47-8

  • Empirical Formula (Hill Notation) C5H10O3

  • Molecular Weight 118.13

  •  Beilstein/REAXYS Number 1720839

  •  EC Number 211-694-1

  •  MDL number MFCD00004518

  •  PubChem Substance ID 24894514

  •  NACRES NA.22

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Properties

Related Categories Asymmetric Synthesis, Chemical Synthesis, Chiral Building Blocks, Esters, Organic Building Blocks More...
Quality Level   200
vapor density   4.1 (vs air)
vapor pressure   2 mmHg ( 20 °C)
  5 mmHg ( 30 °C)
assay   98%
optical activity   [α]14/D −10°, neat
autoignition temp.   752 °F
expl. lim.   1.5 %, 100 °F
refractive index   n20/D 1.4130 (lit.)
bp   154 °C (lit.)
mp   −26 °C (lit.)
density   1.034 g/mL at 20 °C (lit.)
  1.042 g/mL at 25 °C
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

Description

General description

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.

Application

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

Packaging

5, 100, 500 g in glass bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
Target organs 
Respiratory system
RIDADR 
UN1192 - class 3 - PG 3 - Ethyl lactate
WGK Germany 
WGK 1
Flash Point(F) 
128.8 °F - closed cup
Flash Point(C) 
53.8 °C - closed cup

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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