L(+)-Histidin 98%
Lieferant: Thermo Scientific
166150250
166151000
166155000
ACRO166150250EA
53.1
CHF
ACRO166150250
ACRO166151000
ACRO166155000
L(+)-Histidin 98%
L(+)-Histidin
Formel:
C₆H₉N₃O₂ Melting Pt: 282 °C (dec.) Dichte: 1,44 g/cm³ (20 °C) Lager Temperatur: Raumtemperatur |
MDL Number:
MFCD00064315 CAS-Nummer: 71-00-1 EINECS: 200-745-3 Merck Index: 13,04741 |
Spezifikation Testergebnisse
Appearance | White Crystalline powder or crystals |
Infrared spectrum | Conforms |
Loss on drying | ≤0.2 % (105°C, 3 h) |
Sulfated ash | ≤0.1 % |
UV transmittance | ≥98 % (c=5, H2O, 430 nm) 1 cm cell |
pH | 7.0 to 8.5 (2 % in water) |
Specific optical rotation | +12.0° to +14.0° (20°C, 589 nm) (c=11, 6 N HCl) (on dry substance) |
Titration with HClO4 | 97.5 to 102.5 % (On dry substance) |
Chloride (Cl) | ≤200 ppm |
Sulfate (SO4) | ≤200 ppm |
Ammonium (NH4) | ≤200 ppm |
Iron (Fe) | ≤10 ppm |
Heavy metals (as Pb) | ≤10 ppm |
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