- SELENO-DL-METHIONINE
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- $1.00 / 1kg
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2019-07-06
- CAS:2578-28-1
- Min. Order: 1kg
- Purity: 98%min
- Supply Ability: as request
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| | SELENO-DL-METHIONINE Basic information |
| | SELENO-DL-METHIONINE Chemical Properties |
| 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) |
| | SELENO-DL-METHIONINE Usage And Synthesis |
| 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.] |
| | SELENO-DL-METHIONINE Preparation Products And Raw materials |
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