• Epi-avermectin B1a, EvoPure� packaged and labeled in glass vial.

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SKU: E043

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Description
Epi-Avermectin B1a is a base-catalysed intermediate in the decomposition of avermectin B1a. epi-Avermectin B1a is formed by epimerisation at the 2-position which ultimately rearranges irreversibly to the isomeric alkene analogue, Δ2-avermectin B1a. epi-Avermectin B1a is only very weakly active as a nematocide showing ~100-fold loss of biological activity compared with the parent avermectin. epi-Avermectin B1a is formed in vivo following treatment with avermectin and is an environmental degradation product.

Epi-Avermectin B1a is soluble in ethanol, methanol, DMF and DMSO.  

    CAS Number

    106434-14-4

    Molecular Formula

    C48H72O14

    Molecular Weight

    873.1

    Storage Conditions

    -20°C

Specifications

    Appearance

    White solid

References

    References

    Base-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.

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