L(+)-Leucine 99%

Supplier: Thermo Scientific

Synonyms: (S)-(+)-Leucine, Leu, H-Leu-OH, Leucine, L-Leucine

125121000 125125000 125120025
ACRO125121000EA 107 GBP
ACRO125121000 ACRO125125000 ACRO125120025
L(+)-Leucine 99%
L(+)-Leucine
Formula: C₆H₁₃NO₂
MW: 131,17 g/mol
Melting Pt: 286…288 °C
Density: 1,165 g/cm³ (20 °C)
Storage Temperature: Ambient
MDL Number: MFCD00002617
CAS Number: 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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