L-ISOLEUCINE For Biochemistry

L-ISOLEUCINE For Biochemistry

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Category: Amino Acids & Derivatives

Description
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Description

(2S,3S)-2-Amino-3-methylpentanoic acid

Article No.	04215	Grade	For Biochemistry
Purity	99%	CAS No.	73-32-5
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 powder
Odour	Odorless	Melting point/ Freezing point [°C]	288 °C
Solubility in water [% weight]	Partially soluble in water

Specifications

Appearance	White powder
Assay (by HClO4 titration)	Min 99%
Specific optical rotation ([α]20/D; 40 g/L 6M HCl; on dried substance)	+40 to +43 deg
Specific optical rotation ([α]25/D; 40 g/L in 6M HCl; on dried substance)	+38.9 to +41.8 deg
pH (1% solution in CO2 free water)	5.5 – 7.0
Chloride (Cl)	Max 0.02%
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 0.5%
Other ninhydrin positive substances (as glycine)	Max 0.1%

Packings

5 g	00005
25 g	00025
1000 g	01000

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