L-LEUCINE For Biochemistry

L-LEUCINE For Biochemistry

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Category: Amino Acids & Derivatives

Description
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Description

(S)-2-Amino-4-methylpentanoic acid

Article No.	04395	Grade	For Biochemistry
Purity	99%	CAS No.	61-90-5
Molecular Formula	C₆H₁₃NO₂	Molecular Weight	131.18
H.S. Code	2922.4990	Shelf Life	60 Months

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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.
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%

Packings

25 g	00025
100 g	00100
1000 g	01000

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