L(-)-Methanesulfonylethyllactate

  • Ethyl L-(-)-lactate mesylate
  • Ethyl (S)-2-(methylsulfonyloxy)propionate
  • (S)-(-)-Ethyl 2-(methylsulfonyloxy)propionate
  • Propanoic acid, 2-[(methylsulfonyl)oxy]-, ethyl ester, (2S)-
Formula
C6H12O5S
Structure
Description
Clear light brown liquid. With a stench.

Registry Numbers and Inventories.
CAS
63696-99-1
Beilstein/Gmelin
4246550

Properties.
Formula
C6H12O5S
Formula mass
196.21
Boiling point, °C
103
Density
1.31 g/cm3
Solubility in water
Slightly soluble
Refractive index
1.1992 (20 C)

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container. Corrosives area.
Handling
Wash thoroughly after handling. Do not get on skin and clothing. Do not ingest or inhale. Use only in a chemical fume hood.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, oxides of sulfur, carbon dioxide.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use carbon dioxide.

Health.
Exposure effects
   Ingestion
May cause corrosion and permanent tissue destruction of the esophagus and digestive tract.
   Inhalation
Irritation may lead to chemical pneumonitis and pulmonary edema. Causes chemical burns to the respiratory tract.
   Skin
Causes skin burns.
   Eyes
Causes eye burns. Lachrymator.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.