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DL-METHIONINEICSC: 0919
2-Amino-4-(methylthio)butyric acidOctober 1997
CAS #: 59-51-8
EC Number: 200-432-1

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Gives off irritating or toxic fumes (or gases) in a fire.        Use water spray, powder, foam, carbon dioxide.   

   
  SYMPTOMS PREVENTION FIRST AID
Inhalation   Use local exhaust.  Fresh air, rest. 
Skin     Rinse skin with plenty of water or shower. 
Eyes   Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.  Rinse mouth. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Separated from strong oxidants. Well closed. 
PACKAGING
 
DL-METHIONINE ICSC: 0919
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS CRYSTALS OR WHITE POWDER. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces toxic fumes of sulfur oxides and nitrous oxides. 

Formula: C5H11NO2S / CH3S(CH2)2CH(NH2)COOH
Molecular mass: 149.2
Decomposes at 281°C
Relative density (water = 1): 1.3
Solubility in water, g/100ml at 20°C: 4.8  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by ingestion. 

Effects of short-term exposure
 

Inhalation risk
 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations
       DL-METHIONINE (JECFA Evaluation)