Product Name |
L-Tryptophan | Molecular Formula | C11H12N2O2 |
CAS Number |
73-22-3 | Molecular Weight | 204.2 |
Appearance | White fine crystals | Assay |
99%(min) |
ph | 5.5~7.0 | Chloride(Cl) | ≤0.020% |
Sulfate(SO4) | ≤0.020% | Ammonium(NH4) | ≤0.020% |
Iron (Fe) | ≤10ppm | Heavy metals(pb) | ≤10ppm |
Arsenic(AS2O3) | ≤1ppm | Other amino acids | ≤0.020% |
≤0.2% | Residue on ignition | ≤0.1% | |
≥98.0% | Specific Rotation | -29.4~ -32.8°(C=1 in H2O) |