D-Methionine 99+%
Fornitore: Thermo Scientific
Synonyms:
D(+)-Methionine, (R)-2-Amino-4-(methylthio)butanoic acid, (R)-(+)-2-Amino-4-(methylthio)butyric acid, (R)-(+)-2-Amino-4-(methylthio)butanoic acid, (R)-(+)-Methionine, H-D-Met-OH
227210050
227210250
227211000
ACRO227210050EA
44.3
EUR
ACRO227210050
ACRO227210250
ACRO227211000
D-Methionine 99+%
D-Methionine
Formula:
C₅H₁₁NO₂S Peso molecolare: 149,21 g/mol Punto di ebollizione: 278 °C (1013 hPa) Punto di fusione: 273…275 °C (dec.) Temperatura di stoccaggio: Refrigerata |
MDL Number:
MFCD00002622 CAS Number: 348-67-4 EINECS: 206-483-6 Merck Index: 13,06004 |
Risultati del test di specificazione
Appearance | White to off-white Powder |
Infrared spectrum | Conforms |
Loss on drying | ≤0.3 % |
Sulfated ash | ≤0.1 % |
UV transmittance | ≥98 % (c=3, H2O, 430 nm) 1 cm cell |
Specific optical rotation | -23° to -25° (20°C, 589 nm) (c=8, 6 N HCl) (on dried substance) |
Titration with HClO4 | 99.0 to 101.0 % (on dried substance) |
Chloride (Cl) | ≤300 ppm |
Sulfate (SO4) | ≤300 ppm |
Ammonium (NH4) | ≤200 ppm |
Arsenic (As) | ≤1 ppm |
Iron (Fe) | ≤10 ppm |
Heavy metals (as Pb) | ≤10 ppm |
Other amino acids | (TLC) not detectable |
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