DL-Pyroglutamic acid CAS NO.149-87-1

DL-Pyroglutamic Acid CAS NO.: 149-87-1 Chemical Name DL-Pyroglutamic Acid Molecular Structure Molecular Formula C5H7NO3 Molecular Weight 129…

DL-Pyroglutamic Acid CAS NO.: 149-87-1 Chemical Name DL-Pyroglutamic Acid Molecular Structure Molecular Formula C5H7NO3 Molecular Weight 129.11 Characteristics White crystals or crystalline powder Packing 25kg/drum，25kg/carton Quality Standard AJI92/USP28/EP5/FCCIV Specification Specific Rotation [a]D20o 0° —±0.5° Melting point 181℃ Heavy metal(PB) ≤10ppm Iron(FE) ≤10ppm Loss on Drying ≤0.2% Arsenic(AS2O3) ≤1ppm Assay 98.5% —100.5% Residue on ignition ≤0.1% Other amino acid Chromatographically not detectable Chloride ≤0.02%