DL-Methionin 99+%

Lieferant: Thermo Scientific

Synonyme: Methionin racemisch(±)-2-Amino-4-(methylthio)buttersäure(±)-2-Amino-4-(methylmercapto)buttersäure(±)-MethioninH-DL-Met-OHMethioninum racemicum

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DL-Methionin 99+%
DL-Methionin
Formel: C₅H₁₁NO₂S
Molecular Weight: 149,21 g/mol
Schmelzpunkt: 270…273 °C (Zersetzung)
Dichte: 1,34 g/cm³
Lagertemperatur: Kühlschrank
MDL: MFCD00063096
CAS-Nummer: 59-51-8
EINECS: 200-432-1
Merck Index: 13,06004

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Spezifikation Testergebnisse

Appearance White Crystalline powder or crystals
Infrared spectrum Conforms
Loss on drying ≤0.5 % (1 g, 105°C)
Sulfated ash ≤0.1 %
UV transmittance ≥95 % (c=10, 2 N HCl, 430 nm) 1 cm cell
pH 5.4 to 6.1 (2 % w/v in water)
Titration with HClO4 99.0 to 101.0 % (on dried substance)
Chloride (Cl) ≤200 ppm
Sulfate (SO4) ≤200 ppm
Ammonium (NH4) ≤1000 ppm
Heavy metals (as Pb) ≤10 ppm
Other amino acids ≤0.2 % (TLC)

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