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ChemicalBook--->CAS DataBase List--->2578-28-1

2578-28-1

2578-28-1 Structure

2578-28-1 Structure
IdentificationMore
[Name]

SELENO-DL-METHIONINE
[CAS]

2578-28-1
[Synonyms]

2-AMINO-4-(METHYLSELENO)BUTANOIC ACID
2-AMINO-4-(METHYLSELENO)BUTYRIC ACID
AURORA KA-6143
D,L-2-AMINO-4-(METHYLSELENO)BUTANOIC ACID
DL-SELENOMETHIONINE
SELENO-DL-METHIONINE
SELENOMETHIONINE
(+-)-butanoicaci
DL-SELENOMETHIONINE-13C1 (METHYL-13C) 99
D L-SELENOMETHIONINE 99+%
DL-SELENOMETHIOININE
rac-(2R*)-2-[2-(Methylseleno)ethyl]glycine
[EINECS(EC#)]

215-977-0
[Molecular Formula]

C5H11NO2Se
[MDL Number]

MFCD00063089
[Molecular Weight]

196.11
[MOL File]

2578-28-1.mol
Chemical PropertiesBack Directory
[Appearance]

colorless, faint smelling, glistening powder
[Melting point ]

267-269 °C
[storage temp. ]

−20°C
[solubility ]

0.5 M HCl: 50 mg/mL, clear, colorless
[form ]

Glistening Powder
[color ]

Colorless
[Merck ]

8441
[CAS DataBase Reference]

2578-28-1(CAS DataBase Reference)
Safety DataBack Directory
[Hazard Codes ]

T,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 ]

S20/21:When using, do not eat, drink or smoke .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
[RIDADR ]

UN 3283 6.1/PG 2
[WGK Germany ]

3
[RTECS ]

ES7110000
[F ]

10
[HazardClass ]

6.1(a)
[PackingGroup ]

II
[HS Code ]

29319090
Hazard InformationBack Directory
[Hazard]

A poison.
[Chemical Properties]

colorless, faint smelling, glistening powder
[Definition]

ChEBI: Selenomethionine is a selenoamino acid that is the selenium analogue of methionine. It has a role as a plant metabolite. It is a member of selenomethionines and a selenoamino acid.
[Purification Methods]

It crystallises in hexagonal plates from MeOH and H2O. [Klosterman & Painter J Am Chem Soc 69 2009 1949.] The L-isomer [3211-76-5] is purified by dissolving it in H2O, adjusting the pH to 5.5 with aqueous NH3, evaporating to near-dryness, and the residue is washed several times with absolute EtOH till a solid is formed and then recrystallise from Me2CO. It has m 266-268o(dec) [also 275o(dec)], and [] D +18.1o(c 1, N HCl). [Pande et al. J Org Chem 35 1440 1970, Beilstein 4 IV 3216.]
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

DL-Selenomethionine, 99+%(2578-28-1)
[Sigma Aldrich]

2578-28-1(sigmaaldrich)
[TCI AMERICA]

DL-Selenomethionine,>98.0%(T)(2578-28-1)
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3211-76-5 50-81-7 63-68-3