Items | Standards | ||
APPEARANCE | WHITE CRYSTALLINE POWDER | ||
ASSAY (ON DRY BASIS) | 98.00%-102.00% w/w | ||
TASTE | PURE | ||
SPECIFIC ROTATION | 14.50°~ 16.50° | ||
TRANSMITTANCE | ≥95.0% | ||
ARSENIC( AS) | ≤2PPM | ||
LOSS ON DRYING | ≤4.50% | ||
RESIDUE ON IGNITION | ≤0.20% | ||
PH VALUE | 4.50~6.00 | ||
L-PHENYLALANINE | ≤0.50% w/w | ||
HEAVY METAL( PB) | ≤10PPM | ||
CONDUCTIVITY | ≤30 us/cm | ||
FLUORID( PPM) | ≤10ppm | ||
OTHER RELATED SUBSTANCES | ≤2.0% w/w | ||
DIKETOPIPERAZINE(DKP)5-BENZYL-3.6-DIOXO-2-PIRERAZINEACETIC ACID | ≤1.5% w/w | ||
L-A-ASPARTYL-L-PHENYLALANINE | ≤0.25% | ||
LEAD | ≤1 ppm |
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