Description:
<jats:title>Abstract</jats:title>
<jats:p> Weakly phytotoxic, water-soluble pigments from culture filtrates of the potato early blight organism Alternaria solani have been identified by <jats:sup>1</jats:sup>H NMR, UV, mass spectrometric, and acetylation studies as the pair of rotamers represented by structure 1a.</jats:p>