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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%
Loss on drying ≤0.2% Residue on ignition ≤0.1%
State of solution ≥98.0% Specific Rotation -11.5~ -12.5°(C=2 in H2O)