L(+)-Asparagine monohydraté 99%
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 EINECS: 200-735-9 Indice Merck: 14,00837 |
Résultats des tests de spécification
Appearance | White Crystalline powder |
Infrared spectrum | Conforms |
Loss on drying | 11.5 % to 12.5 % (130°C, 3 hrs) |
Sulfated ash | ≤0.1 % |
UV transmittance | ≥98 % (c=2, H2O, 430 nm) 1 cm cell |
Specific optical rotation | +33.5° to +36.5° (20°C, 589 nm) (c=10, 6 N HCl) (on dry substance) |
Titration with HClO4 | 98.5 to 101.5 % (On dried substance) |
Chloride (Cl) | ≤210 ppm |
Sulfate (SO4) | ≤280 ppm |
Ammonium (NH4) | ≤1000 ppm |
Arsenic (As) | ≤1 ppm |
Iron (Fe) | ≤10 ppm |
Heavy metals (as Pb) | ≤10 ppm |
Other amino acids | ≤1 % (TLC) |
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