(S)-2-Phenyllactic acid

  • (S)-(+)-Atrolactic acid
  • (+)-a-Methylmandelic acid
  • (+)-2-Hydroxy-2-phenylpropionic acid
  • Benzeneacetic acid, a-hydroxy-a-methyl-, (aS)-
Formula
C9H10O3
Structure
Description
White crystalline powder.

Registry Numbers and Inventories.
CAS
13113-71-8
S 22 24/25
Beilstein/Gmelin
2208529
Beilstein Reference
4-10-00-00657

Properties.
Formula
C9H10O3
Formula mass
166.17
Melting point, °C
116 - 117
Boiling point, °C
312
Solubility in water
Very soluble
pKa/pKb
3.53 (pKa)
Partition coefficient, pKow
1.27

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Protection
Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear a chemical apron.
Respirators
A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.
Stability
No data.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, 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 foam, dry chemical, or carbon dioxide.

Health.
Exposure effects
   Ingestion
No information found.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   Inhalation
Remove from exposure to fresh air immediately.
   Skin
Flush skin with plenty of soap and 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.

Transport.