D-(-)-Valine 98+%
Dodavatel: Thermo Scientific
227220250
227220050
ACRO227220250EA
4120
CZK
ACRO227220250
ACRO227220050
D-(-)-Valine 98+%
D-(-)-Valine
Vzorec:
C₅H₁₁NO₂ Bod varu: 217 °C (1013 hPa) Bod tání: 302…303 °C (rozkl.) Storage Temperature: Ambient |
MDL Number:
MFCD00064219 CAS číslo: 640-68-6 EINECS: 211-368-9 |
Výsledky specifikačního testu
Appearance | White to off-white Crystalline powder |
Infrared spectrum | Conforms |
Water | ≤0.5 % |
Loss on drying | ≤0.5 % (105°C, 4 hrs) |
Sulfated ash | ≤0.2 % |
TLC | ≤1 % L-enantiomer |
Specific optical rotation | -26° to -29° (20°C, 589 nm) (c=5, 5 N HCl) |
Titration with HClO4 | 98.0 to 102.0 % |
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