SKU: A151

    Delta 2 -Avermectin B1a

    $287.86 - $1,007.52
    Δ2-Avermectin B1a is an irreversible base degradation product of avermectin found in animal treated with avermectin and in the environment. Δ2-Avermectin B1a is formed by rearrangement of the naturally-occurring Δ3-group to the 2-position. Although less active than the parent, Δ2-avermectin B1a is nonetheless active in the at 1 ppm.

    Δ2-Avermectin B1a is soluble in ethanol, methanol, DMF or DMSO.
    ReferencesBase-catalyzed isomerization of avermectins. Pivnichny J.V. et al. J. Agric. Food Chem. 1988, 36, 826.

    Direct determination of avermectins in plasma at nanogram levels by High-Performance Liquid Chromatography. Pivnichny J.V. et al. J. Pharm. Sci. 1980, 72, 1447.