L(+)-Asparagine monohydraté, meetSpec_Ph.Eur.
Marques : Thermo Fisher ScientificTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
Synonyme(s):
L-Asparagine monohydraté, (S)-(+)-Asparagine monohydraté
Formule:
C₄H₈N₂O₃·1H₂O Poids moléculaire: 150.13 g/mol Point de fusion: 233…235 °C Température de stockage: Température ambiante |
Numéro MDL:
MFCD00151038 Numéro CAS: 5794-13-8 Indice Merck: 14,00837 |
Résultats des tests de spécification
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 | ≤0.8 % (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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