| L-Pyroglutamic Acid | CAS NO：98-79-3 |
| Chemical Name | L-Pyroglutamic Acid |
| Molecular Structure |
|
| Molecular Formula | C5H7NO3 |
| Molecular Weight | 129.11 |
| Characteristics |
White crystals crystalline powder |
| Packing |
25㎏/drum，25㎏/carton |
| Quality Standard | AJI92/USP28/EP5/FCCIV |
Specification
| Specific rotation[a]D20° | -10.5° —-12.3° |
|
Sulfte(SO4) |
≤0.02% |
| Heavy metal(PB) | ≤10ppm |
| Iron(FE) | ≤10ppm |
| Loss on Drying | ≤0.5% |
| Arsenic(AS2O3)(Sulfated) | ≤1ppm |
| Assay | 98.5% —101.0% |
| Residue on ignition | ≤0.1% |
| Other amino acid | Chromatographically not detectable |
| Chloride | ≤0.2% |
