D-(-)-Leucine 99%

Supplier: Thermo Scientific

ACRO226900025EA 42.5 EUR
ACRO226900025 ACRO226900100
D-(-)-Leucine 99%
D-(-)-Leucine

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Specification Test Results

Appearance White Powder or crystals or flakes
Infrared spectrum Conforms
Loss on drying ≤0.2 %
TLC ≤0.5 % L-enantiomer
Appearance of solution (5% soln. in 3 N HCl) clear, colorless
Residue after ignition ≤0.1 %
Specific optical rotation -14.9° to -16° (20°C, 589 nm) (c=4, 6 N HCl)
Titration with HClO4 ≥98.5 %
Arsenic (As) ≤2 ppm
Iron (Fe) ≤10 ppm
Heavy metals (as Pb) ≤10 ppm

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