L(+)-Asparagine monohydrate, meets analytical specification of Ph.Eur.
Supplier: Thermo Scientific
ACRO401482500EA
115
EUR
ACRO401482500
ACRO401481000
ACRO401480010
L(+)-Asparagine monohydrate, meets analytical specification of Ph.Eur.
L(+)-Asparagine monohydrate
Specification Test Results
Appearance | Colorless to white to almost white Crystalline powder or crystals |
Infrared spectrum | Conforms |
Loss on drying | 10.5 % to 12.5 % (1 g, 130°C, 3 h) |
Sulfated ash | ≤0.1 % (1 g) |
Appearance of solution | Clear colorless |
Related substances | ≤0.5 % (impurity A) |
Related substances | ≤0.1 % (impurity C) |
Related substances | ≤0.05 % (unspecified impurities) |
Related substances | ≤0.8 % (total impurities) |
pH | 4.0 to 6.0 |
Specific optical rotation | +33.7° to +36.0° (20°C, 589 nm) (on dried substance) |
Titration with HClO4 | 99.0 to 101.0 % (on dried substance) |
Sulfates | ≤200 ppm |
Chlorides | ≤200 ppm |
Ammonium (NH4) | ≤0.1 % |
Iron (Fe) | ≤10 ppm |
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