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D-Pyroglutamic Acid

    Specifications

    HS Code

    969781

    Cas Number 4285-89-0
    Molecular Formula C5H7NO3
    Molecular Weight 129.11 g/mol
    Appearance White to off-white crystalline powder
    Melting Point 150-152°C
    Solubility In Water Soluble
    Optical Rotation +13° to +15° (c=1, H2O)
    Purity ≥98%
    Chemical Name D-Pyroglutamic Acid
    Synonyms D-5-Oxoproline; D-PGA; D-Pyrrolidonecarboxylic acid
    Boiling Point 380.3°C at 760 mmHg
    Pka 2.17 (carboxyl), 9.34 (amino)
    Storage Temperature 2-8°C
    Smiles O=C1CCC(N1)C(=O)O
    Ec Number 224-331-7

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