SELENO-DL-METHIONINE
- CAS NO.：2578-28-1
- Empirical Formula: C5H11NO2Se
- Molecular Weight: 196.11
- MDL number: MFCD00063089
- EINECS: 678-482-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-05-04 17:34:36
What is SELENO-DL-METHIONINE?
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.
Hazard
A poison.
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.]
Properties of SELENO-DL-METHIONINE
| 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 information for SELENO-DL-METHIONINE
Computed Descriptors for SELENO-DL-METHIONINE
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