SMILES: C1=CC(=O)[C@@H]([C@H]1/C=C/[C@H](CCCCCO)O)CCCCCCC(=O)[O-]
Description: The molecule is a prostaglandin carboxylic acid anion that is the conjugate base of 20-hydroxyprostaglandin A1, obtained by deprotonation of the carboxy group; major species at pH 7.3. It derives from a prostaglandin A1(1-). It is a conjugate base of a 20-hydroxyprostaglandin A1.