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L-pyroglutamic acid
Product detail
L-Pyroglutamic AcidCAS NO:98-79-3
Chemical NameL-Pyroglutamic Acid
Molecular Structure123456.jpg
Molecular FormulaC5H7NO3
Molecular Weight129.11
CharacteristicsWhite crystals or crystalline powder
Packing25/drum,25/carton
Quality  StandardAJI92/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
Assay98.5% —101.0%
Residue on ignition≤0.1%
Other amino acidChromatographically not detectable
Chloride≤0.2%        
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