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  • Title: The spin trapping of superoxide with M4PO (3,3,5,5-tetramethylpyrroline-N-oxide).
    Author: Buettner GR, Britigan BE.
    Journal: Free Radic Biol Med; 1990; 8(1):57-60. PubMed ID: 2157635.
    Abstract:
    The spin trap 3,3,5,5-tetramethylpyrroline-N-oxide (M4PO) reacts with superoxide to produce a short-lived spin adduct (M4PO/.OOH, AN = 14.0 G, AH = 6.5 G) that decays by a first-order process (t1/2 approximately 35 s at pH 7.4). This short lifetime may limit its usefulness in studies of superoxide.
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