L-PHENYLALANINE (FOR BIOCHEMISTRY)

Article No.	Grade	Purity	Cas no.	Molecular Formula	Molecular Weight	H.S. Code	Shelf Life
P0157700100	For Biochemistry	99%	63-91-2	C₉H₁₁NO₂	165.19	2922.4990	60 Months

Physical Properties

Physical state at 20 °C

Solid

Colour

White crystalline

Odour

Odorless

pH value

5 - 7 at 16.5 g/l at 25 °C

Melting Point/ Freezing point [°C]

270 - 275 °C

Density [g/cm3]

1.29

Viscosity at 40°C [mm2/s]

16.5 g/l at 20 °C - completely soluble

Solubility in water [% weight]

16.5 g/l at 20 °C - completely soluble

Appearance:	White or almost white crystalline powder
Heavy metal (as Pb):	Max 0.001%
Ammonium (NH4):	Max 0.01%
Assay (by HClO4 titration):	Min 99%
Foreign amino acids:	Max 0.3%
Other ninhydrin positive substances (as glycine):	Max 0.1%
Specific optical rotation ([α]20/D; 20 g/L; water; calculated on dried substances):	-33.0° to -34.7°