L-Phénylalanine 98.5-101.0%, Conforme aux spécifications analytiques USP
Marques : Thermo Fisher ScientificTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
Synonyme(s):
H-Phe-OH, H-L-Phe-OH, L-α-Phénylalanine, 3-Phényl-L-alanine, 3-Phényl-L(-)-alanine
Formule:
C₉H₁₁NO₂ Poids moléculaire: 165.19 g/mol Point d'ébullition: 313 Point de fusion: 270…275 °C (déc.) Température de stockage: Température ambiante |
Numéro MDL:
MFCD00064227 Numéro CAS: 63-91-2 Indice Merck: 14,07271 |
Résultats des tests de spécification
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 | ≤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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