The molecule is an organic anion that is the conjugate base of alpha-cyclopiazonic acid; major species at pH 7.3. It is a conjugate base of an alpha-cyclopiazonic acid.
(1Z)-1-[(2R,3S,9R)-8,8-dimethyl-4,6-dioxo-7,16-diazapentacyclo[9.6.1.02,9.03,7.015,18]octadeca-1(17),11(18),12,14-tetraen-5-ylidene]ethanolate