D-Methionine 99+%
Supplier: Thermo Scientific
Ratings:
(No Reviews)
Total Ratings: 0
Avg. Ratings: 0.0 out of 5
227210050
227210250
227211000
ACRO227210050EA
21.9
GBP
ACRO227210050
ACRO227210250
ACRO227211000
D-Methionine 99+%
D-Methionine
Formula:
C₅H₁₁NO₂S Boiling Pt: 278 °C (1013 hPa) 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 |
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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