The molecule is a dicarboxylic acid and a C20-gibberellin. It is a conjugate acid of a gibberellin A44 (2-) (diacid form).
(1S,2S,3S,4R,8R,9R,12S)-12-hydroxy-8-(hydroxymethyl)-4-methyl-13-methylidenetetracyclo[10.2.1.01,9.03,8]pentadecane-2,4-dicarboxylic acid