L-LEUCINE
L-LEUCINE For Biochemistry
Short Name: L-LEUCINE
Synonym: (S)-2-Amino-4-methylpentanoic acid
Basic Details
Article No.
LG2733
Grade
For Biochemistry
Purity
99%
CAS No.
61-90-5
HS Code
2922.4990
Shelf Life
60 Months
Packings Avialable
Physical Properties
Physical state at 20 °C
Solid
Colour
White shining powder
Melting point/ Freezing point [°C]
> 300 °C
Density [g/cm3]
1.293
Solubility in water [% weight]
Soluble in water
Chemical Specifications
Appearance
White crystalline powder.
Assay (by HClO4 titration)
Min 99%
Specific optical rotation ([α]20/D; c=4 in 6 M HCl; on dried substance)
+14.9 to +16.50 deg
pH (1% solution)
5.5 - 7.0
Appearance of solution
Passes test
Insoluble matter in HCl 1 mol/L
Passes test
Loss on drying (at 105°C)
Max 0.2%
Residue on ignition (as SO4)
Max 0.1%
Chloride (Cl)
Max 0.05%
Sulphate (SO4)
Max 0.03%
Iron (Fe)
Max 0.001%
Heavy metal (as Pb)
Max 0.001%
Ammonium (NH4)
Max 0.02%
Foreign amino acids
Max 0.3%
Other ninhydrin positive substances (as glycine)
Max 0.1%
Safety Information & Hazard Symbols