L(+)-Leucine 99%

Leverancier: Thermo Fisher Scientific
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ACRO125121000EA 62.9 EUR
ACRO125121000 ACRO125125000 ACRO125120025
L(+)-Leucine 99%
L(+)-Leucine
Formule: C₆H₁₃NO₂
Smeltpunt: 286…288 °C
Dichtheid: 1,165 g/cm³ (20 °C)
Bewaar temperatuur: Kamertemperatuur
MDL Nummer: MFCD00002617
CAS nummer: 61-90-5
EINECS: 200-522-0
Merck Index: 14,05451

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Specification Test Results

Appearance White Crystalline powder or crystals
Infrared spectrum Conforms
Loss on drying ≤0.2 % (105°C, 3 hrs)
Sulfated ash ≤0.4 %
UV transmittance ≥95 % (c=10, 2 N HCl, 430 nm) 1 cm cell
pH 5.5 to 7.0 (1 % in water)
Specific optical rotation +14.5° to +17.3° (20°C, 589 nm) (c=4, 6 N HCl)
Titration with HClO4 98.5 to 101.5 %
Chloride (Cl) ≤500 ppm
Sulfate (SO4) ≤300 ppm
Iron (Fe) ≤30 ppm
Heavy metals (as Pb) ≤20 ppm
Other amino acids ≤0.5 % (TLC)


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