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 |
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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