D(-)-Acide aspartique 99+%
Marques : Thermo Fisher ScientificTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
Synonyme(s):
(R)-(-)-Acide aspartique
Formule:
C₄H₇NO₄ Poids moléculaire: 133.1 g/mol Point de fusion: >300 °C Température de stockage: Température ambiante |
Numéro MDL:
MFCD00063081 Numéro CAS: 1783-96-6 EINECS: 217-234-6 Indice Merck: 13,00845 |
Résultats des tests de spécification
Appearance | White to off-white Crystalline powder |
Infrared spectrum | Conforms |
Loss on drying | ≤0.4 % (105°C, 3 hrs) |
Enantiomeric excess | ≤0.5 % (L-enantiomer) |
Residue after ignition | ≤0.1 % |
Specific optical rotation | -23.8° to -25.8° (20°C, 589 nm) (c=5, 5 N HCl) |
Titration with NaOH | ≥99.0 % |
Other amino acids | ≤0.3 % (TLC) |
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