L-Phenylalanine 98.5-101.0%, meets analytical specification of USP
Supplier: Thermo Scientific
ACRO453930250EA
41.9
EUR
ACRO453930250
ACRO453931000
L-Phenylalanine 98.5-101.0%, meets analytical specification of USP
L-Phenylalanine
Specification Test Results
Appearance | Colorless to white Powder or crystals |
Infrared spectrum | Conforms |
Loss on drying | ≤0.3 % (105°C, 3 hrs) |
Heavy metals | ≤15 ppm |
Sulfated ash | ≤0.4 % |
Related substances | ≤2.0 % (total impurities) |
Related substances | ≤0.5 % (individual impurities) |
pH | 5.4 to 6.0 (1 % solution) |
Specific optical rotation | -32.7° to -34.7° (20°C, 589 nm) (2%,water) |
Titration with HClO4 | 98.5 to 101.5 % (On dried base) |
Chloride (Cl) | ≤0.05 % |
Sulfate (SO4) | ≤0.03 % |
Iron (Fe) | ≤0.003 % |
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