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DL-Selenomethionine
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Name

DL-Selenomethionine

 EINECS N/A
CAS No. 2578-28-1 Density N/A
PSA 74.96000 LogP 0.65730
Solubility N/A Melting Point 267-269oC
Formula C5H11NO2Se Boiling Point 320.8oC at 760 mmHg
Molecular Weight 196.108 Flash Point 147.8oC
Transport Information N/A Appearance colorless, faint smelling, glistening powder
Safety Risk Codes R23/25; R33; R50/53
Molecular Structure Molecular Structure of 2578-28-1 (SELENO-DL-METHIONINE) Hazard Symbols T,N
Synonyms

DL-SELENOMETHIONINE-13C1 (METHYL-13C) 99;(+-)-butanoicaci;DL-Selenomethionine;seleno-D,L-methionine;2-AMINO-4-(METHYLSELENO)BUTYRIC ACID;D,L-2-AMINO-4-(METHYLSELENO)BUTANOIC ACID;2-amino-4-methylselenobutanoic acid;2-Amino-4-(methylselanyl)butanoic acid;D L-SELENOMETHIONINE;AURORA KA-6143;DL-SELENOMETHIOININE;rac-(2R*)-2-[2-(Methylseleno)ethyl]glycine;selenium methionine;

Article Data 1

DL-Selenomethionine Chemical Properties

IUPAC Name: 2-Amino-4-methylselanylbutanoic acid
The MF of DL-Selenomethionine (CAS NO.2578-28-1) is C5H11NO2Se.

                            
The MW of DL-Selenomethionine (CAS NO.2578-28-1) is 196.11.
Synonyms of DL-Selenomethionine (CAS NO.2578-28-1): Butanoic acid, 2-amino-4-(methylseleno)- ; 2-Amino-4-(methylselenyl)butyrate ; Selenomethionine Se 75
Product Categories: Amino Acids;Biochemistry;Biological-modified Amino Acids;Classes of Metal Compounds;Se (Selenium) Compounds;Semimetal Compounds
Apperance: colorless, faint smelling, glistening powder
Solubility in 0.5 M HCl: 50 mg/mL, clear, colorless
Flash Point: 147.8 °C 
Boiling Point: 320.8 °C
Melting Point: 267-269 °C
Storage temp: -20 °C
Merck: 8441
EINECS: 215-977-0

DL-Selenomethionine Uses

 DL-Selenomethionine (CAS NO.2578-28-1) is the most commonly selenium reagent. As a nutrient,used for the culture of bacteria.

DL-Selenomethionine Toxicity Data With Reference

1.    

dnr-sat 10 µLg/plate

     CALEDQ    Cancer Letters (Shannon, Ireland). 10 (1980),75.
2.    

dns-rat-lvr 100 µmol/L

     CALEDQ    Cancer Letters (Shannon, Ireland). 10 (1980),75.
3.    

ipr-rat LD50:10,680 µg/kg

     CTOXAO    Clinical Toxicology. 17 (1980),171.
4.    

scu-rat LDLo:19,600 µg/kg

     ARTODN    Archives of Toxicology. 45 (1980),207.

DL-Selenomethionine Safety Profile

A poison by intraperitoneal and subcutaneous routes. Mutation data reported. When heated to decomposition it emits toxic vapors of NOx and Se.Safety information of DL-Selenomethionine (CAS NO.2578-28-1):
Hazard Codes  ToxicT,DangerousN
Risk Statements  
R23/25:Toxic by inhalation and if swallowed. 
R33:Danger of cumulative effects. 
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements  
S20:When using, do not eat or drink. 
S21:When using do not smoke. 
S28:After contact with skin, wash immediately with plenty of soap-suds. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S60:This material and its container must be disposed of as hazardous waste. S61:Avoid release to the environment. Refer to special instructions / safety data sheets. 
RIDADR  UN 3283 6.1/PG 2
WGK Germany  3
RTECS  ES7110000
F  10
HazardClass  6.1(a)
PackingGroup  II

DL-Selenomethionine Standards and Recommendations

ACGIH TLV: TWA 0.2 mg(Se)/m3

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