Methyl 2-ethylacetoacetate

  • Methyl 2-ethyl-3-oxobutyrate
  • Methyl 2-ethyl-3-oxobutanoate
  • 2-Ethyl-3-oxobutanoic acid, methyl ester
  • Butanoic acid, 2-ethyl-3-oxo-, methyl ester
Formula
C7H12O3
Structure
Description
Liquid.

Registry Numbers and Inventories.
CAS
51756-08-2
EC (EINECS/ELINCS)
257-381-3
R: 36/37/38
S: 26 37/38
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C7H12O3
Formula mass
144.17
Melting point, °C
-28
Boiling point, °C
182
Vapor pressure, mmHg
0.83 (25 C)
Density
0.995 g/cm3 (14 C)
Solubility in water
Soluble
Refractive index
 
pKa/pKb
11.99 (pKa)
Partition coefficient, pKow
1.06
Heat of vaporization
41.8 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Protection
Wear chemical safety goggles, impervious gloves and protective clothing.
Respirators
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Small spills/leaks
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Oxides of carbon.

Fire.
Flash Point,°C
69
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray, dry chemical, carbon dioxide, or chemical foam to extinguish.

Health.
Exposure effects
   Ingestion
May cause irritation of the digestive tract. May be harmful if swallowed.
   Inhalation
Causes respiratory tract irritation. May be harmful if inhaled.
   Skin
Causes irritation. May be harmful if absorbed through the skin.
   Eyes
Causes irritation.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   Inhalation
emove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.