Product Name |
L-Pyroglutamic Acid | Molecular Formula | C5H7NO3 |
CAS Number |
98-79-3 | Molecular Weight | 129.13 |
Appearance | White fine crystals | Assay |
99%(min) |
m.p | 160 -162 ℃ | 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 | -11.5~ -12.5°(C=2 in H2O) |