L-Proline
CAS: 147-85-3
Molecule Formula: C5H9NO2
Molecule Weight: 165.19
Appearance: White crystal or crystalline powder
Assay %: 98.5 ~ 101.0
Specific rotation[α]D20: -84.5° ~ -86.0°
Transmittance, %: ≥98.0
Chloride (Cl), %: ≤0.02
Sulfate (SO4), %: ≤0.02
Ammonium salt (NH4), %: ≤0.02
Iron (Fe): ≤10 ppm
Heavy metals (Pb): ≤10 ppm
Arsenic (As): ≤1 ppm
Lead: ≤3 ppm
Cadmium: ≤1 ppm
Mercury: ≤0.1 ppm
Other amino acids: Negative
Loss on drying, %: ≤0.30
Water content: ≤0.30%
Residue on ignition(sulfated), %: ≤0.10
pH: 5.9 ~ 6.9
Total plate count: ≤1000 cfu/g
Yeast and molds: ≤100 cfu/g
Salmonella: Negative
E.Coli: Negative
