Selenium methionine

  • 2-Amino-4-(methylselenyl)butyric acid
  • Selenomethionine
Formula
CH3SeCH2CH2CH(NH2)C
Structure
Description
Transparent, hexagonal sheets or plates; metallic luster of cryst.
Uses
Medication.

Registry Numbers and Inventories.
CAS
1464-42-2
EC (EINECS/ELINCS)
215-977-0
RTECS
ES7100000
RTECS class
Mutagen; Reproductive Effector
UN (DOT)
3283
Merck
12,8585
Beilstein/Gmelin
1758204
Beilstein Reference
4-04-00-03216
RCRA
D010
New Zealand
Listed

Properties.
Formula
C5H11NO2Se
Formula mass
196.11
Melting point, °C
274

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate personal protective clothing to prevent skin contact. Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
No data.
Incompatibilities
Avoid contact with acids, strong oxidizers, chromium trioxide, potassium bromate, cadmium.

Fire.
Fire fighting
Use method most appropriate to fight surrounding fire.
Fire potential
Non-Combustible
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure limit(s)
IDHL: 1 mg/m3 (as Se)
Exposure effects
Dizziness, decreased reflexes, CNS depression, and coma have been reported.
   Inhalation
Pulmonary edema and cardiopulmonary arrest are possible.
   Skin
Dermatitis and nasal irritation may be present.
   Eyes
See Inhalation.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
3283
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
USCG CHRIS Code
SEC