D-Methionine 99+%

Supplier: Thermo Scientific

Synonyms: D(+)-Methionine(R)-(+)-2-Amino-4-(methylthio)butyric acidH-D-Met-OH(R)-2-Amino-4-(methylthio)butanoic acid(R)-(+)-2-Amino-4-(methylthio)butanoic acid(R)-(+)-Methionine

ACRO227210050EA 76.6 GBP
ACRO227210050 ACRO227210250 ACRO227211000
D-Methionine 99+%
D-Methionine
Formula: C₅H₁₁NO₂S
MW: 149,21 g/mol
Melting Pt: 273…275 °C (dec.)
Storage Temperature: Refrigerator
MDL Number: MFCD00002622
CAS Number: 348-67-4
EINECS: 206-483-6
Merck Index: 13,06004

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Specification Test Results

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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