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69799 Sigma-Aldrich

(−)-Ethyl L-lactate

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

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 329761971

  •  NACRES NA.22

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Properties

Related Categories Asymmetric Synthesis, Chemical Synthesis, Chiral Building Blocks, Esters, Organic Building Blocks More...
Quality Level   100
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

Description

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

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
Protocols & Articles
Peer-Reviewed Papers
15

References

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