The molecule is a gibberellin carboxylic acid anion that is the conjugate base of gibberellin A4, obtained by deprotonation of the carboxy group. It is a conjugate base of a gibberellin A4.
(1R,2R,5R,8R,9S,10R,11S,12S)-12-hydroxy-11-methyl-6-methylidene-16-oxo-15-oxapentacyclo[9.3.2.15,8.01,10.02,8]heptadecane-9-carboxylate