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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

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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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