L-GLUTAMINE For Biochemistry

Description

Physical state at 20 °C	Solid	Colour	White powder
Odour	Odorless	pH value	5 – 6 at 14.6 g/l at 25 °C
Melting point/ Freezing point [°C]	185 °C	Solubility in water [% weight]	14.6 g/l at 20 °C – completely soluble
Partition coefficient Log Pow octanol / water at 20°C	-4.069

Appearance	A white powder
Assay (by HClO4 titration)	Min 99%
Specific optical rotation ([α]20/D)	6.3 – 7.3° (4% in water, at 20°C)
Heavy metal (as Pb)	Max 0.001%
Ammonium (NH4)	Max 0.1%
Foreign amino acids	Max 0.3%
Other ninhydrin positive substances (as glycine)	Max 0.1%

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