Sichuan Tongsheng Biotechnology Co.,Ltd

Sichuan Tongsheng Biotechnology Co.,Ltd

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L-Pyroglutamic acid 98-79-3

  • CAS No:98-79-3 (2S)-5-oxopyrrolidine-2-carboxylic acid
    Molecular Structure

    Detailed Description

    Appearance
    White crystalline powder

    Specific rotation(a)D20

    (C=5 H2O)
    -11.0 to -12.0

    Chloride(C1)
    Not more than 0.02%

    Ammonium(NH4)
    Not more than 0.02%

    Sulfate(SO4)
    Not more than 0.02%

    Heavy metals(Pb)
    Not more than 10ppm

    Iron(Fe)
    Not more than 10ppm

    Arsenic(As2O3)
    Not more than 1 PPM

    Loss on drying
    Not more than 0.5%

    Residue on ignition
    Not more than 0.1%

    Assay
    99.0-101.0%