| SELENO-DL-METHIONINE Basic information |
| Product Name: | SELENO-DL-METHIONINE |
| Synonyms: | 2-AMINO-4-(METHYLSELENO)BUTYRIC ACID;AURORA KA-6143;D,L-2-AMINO-4-(METHYLSELENO)BUTANOIC ACID;DL-SELENOMETHIOININE;DL-SELENOMETHIONINE-13C1 (METHYL-13C) 99;D L-SELENOMETHIONINE 99+%;(+-)-butanoicaci;rac-(2R*)-2-[2-(Methylseleno)ethyl]glycine |
| CAS: | 2578-28-1 |
| MF: | C5H11NO2Se |
| MW: | 196.11 |
| EINECS: | 678-482-2 |
| Product Categories: | Biochemistry;Biological-modified Amino Acids;Amino Acids;Classes of Metal Compounds;Se (Selenium) Compounds;Semimetal Compounds |
| Mol File: | 2578-28-1.mol |
| 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) |
| Safety Information |
| Hazard Codes | T,N |
| Risk Statements | 23/25-33-50/53 |
| Safety Statements | 20/21-28-45-60-61-28A |
| RIDADR | UN 3283 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | ES7110000 |
| F | 10 |
| HazardClass | 6.1(a) |
| PackingGroup | II |
| HS Code | 29319090 |
| MSDS Information |
| Provider | Language |
|---|---|
| ACROS | English |
| SigmaAldrich | English |
| SELENO-DL-METHIONINE Usage And Synthesis |
| Chemical Properties | colorless, faint smelling, glistening powder |
| 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 |
| Raw materials | selenohomocystine-->ALPHA-AMINO-GAMMA-BUTYROLACTONE HYDROBROMIDE-->2(3H)-Furanone,3-aminodihydro-(8CI,9CI)-->Dimethyldiselenide |
| Preparation Products | PIPERAZINE-2,3-DIONE |
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