L-LEUCINE (FOR BIOCHEMISTRY)

L-LEUCINE (FOR BIOCHEMISTRY)

Article No.	Grade	Purity	Cas no.	Molecular Formula	Molecular Weight	H.S. Code	Shelf Life
L0121600025	For Biochemistry	99%	61-90-5	C₆H₁₃NO₂	131.18	2922.4990	60 Months

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

Specifications

Appearance:	White crystalline powder.
Chloride (Cl):	Max 0.02%
Sulphate (SO4):	Max 0.03%
Heavy metal (as Pb):	Max 0.001%
Loss on drying (at 105°C) :	Max 0.2%
Iron (Fe):	Max 0.001%
Ammonium (NH4):	Max 0.02%
Appearance of solution:	Passes test
Assay (by HClO4 titration):	Min 99%
Foreign amino acids:	Max 0.3%
Residue on ignition (as SO4):	Max 0.1%
Other ninhydrin positive substances (as glycine):	Max 0.1%
Insoluble matter in HCl 1 mol/L:	Passes test
pH (1% solution):	5.5 - 7.0
Specific optical rotation ([α]20/D; c=4 in 6 M HCl; on dried substance):	+14.9 to +16.50 deg