Specifications
l-phenylalanineCAS No 63-91-2
FEMA No 3585
EC No 200-568-1
l-phenylalanine
DETAILED DELIVERY SPECIFICATIONS
Specific rotation[]D20: -33.5º to -35.0º
State of solution[Transmittance]: Clear 98.0% min.
Chloride: 0.020% max.
Ammonium[NH4]: 0.02% max.
Sulfate[SO4]: 0.02% max.
Iron[Fe]: 10ppm max.
Heavy metals[Pb]: 10ppm max.
Arsenic[As2O3]: 1ppm max.
Other amino acids: Chromatographically not detectable
Loss on drying: 0.20% max.
Assay: 99.0% min.
PH: 5.4~6.0