L-Phenylalanine,China www.nb-yuanfa.com price supplier

Chemical Name  

L-Phenylalanine

Molecular Structure  

Molecular Formula

C9H11NO2

Molecular Weight

165.19

Characteristics

W  White  crystals or crystalline powder

Packing

25kg/drum,25kg/carton

Quality  Standard

AJI92/USP28/EP5/FCCIV

Specification                                                                      

Specific Rotation [a]D20 ^o

-33.5° —-35.0°

State of solution

≥98.0%

Chloride (CL)

≤0.020%

Ammonium(NH ₄ )

≤0.02%

Sulfate(SO ₄ )

≤0.020%

Iron (Fe)

≤10PPM

Other amino acids

Chromatographically not detectable

Arsenic (A _S2 O ₃ )

≤1PPM

Loss on drying

≤0.20%

Residue on ignition

≤0.10%

Assay

99.0%-100.5%

PH

5.4-6.0