CAS No.2578-28-1,SELENO-DL-METHIONINE Suppliers

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Basic Information

Molecular Structure:
CAS No.:	2578-28-1
Name:	SELENO-DL-METHIONINE
Article Data:	1

Formula:	C5H11NO2Se
Molecular Weight:	196.108
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;
Melting Point:	267-269oC
Boiling Point:	320.8oC at 760 mmHg
Flash Point:	147.8oC
Appearance:	colorless, faint smelling, glistening powder
Hazard Symbols:	T,N
Risk Codes:	R23/25; R33; R50/53
PSA:	74.96000
LogP:	0.65730

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Chemistry

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

Uses

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

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.

Safety Profile

A poison by intraperitoneal and subcutaneous routes. Mutation data reported. When heated to decomposition it emits toxic vapors of NO_x and Se.Safety information of DL-Selenomethionine (CAS NO.2578-28-1):
Hazard Codes   Toxic T, Dangerous N
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

Standards and Recommendations

ACGIH TLV: TWA 0.2 mg(Se)/m³