L(+)-Valine 99%
Marques : Thermo Fisher ScientificTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
Synonyme(s):
(S)-(+)-Valine, H-Val-OH
Formule:
C₅H₁₁NO₂ Poids moléculaire: 117.15 g/mol Point d'ébullition: 217 Point de fusion: 315 °C Densité: 1.23 g/cm³ Température de stockage: Température ambiante |
Numéro MDL:
MFCD00064220 Numéro CAS: 72-18-4 EINECS: 200-773-6 Indice Merck: 13,09458 |
Résultats des tests de spécification
Appearance | White Powder or crystals |
Infrared spectrum | Conforms |
Loss on drying | ≤0.3 % |
Sulfated ash | ≤0.1 % |
Specific optical rotation | +26.5° to +29.0° (20°C, 589 nm) (c=8, 6 N HCl) |
Titration with HClO4 | ≥98.5 % |
Chloride (Cl) | ≤500 ppm |
Sulfate (SO4) | ≤300 ppm |
Ammonium (NH4) | ≤200 ppm |
Iron (Fe) | ≤30 ppm |
Heavy metals (as Pb) | ≤10 ppm |
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