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L-Pyroglutamic Acid CAS:98-79-3<< 返回
ItemLimit
Iron (Fe) 10ppm Max
Heavy Metals (Pb) 10ppm Max
Specific Rotation [a]D20o -10.8º~ -12.5º
Arsenic (As2O3) 1ppm Max
Loss on Drying 0.5% Max
Residue in Ignition 0.1% Max
Assay 98.5% to 101%
Appearance White crystalline powder
Transmittance98.0%Min
PH1.8 to 2.5
Melting point 159 to 161.5℃
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