SMILES: C[C@H](CC(=O)O[C@H](C)CC(=O)O[C@H](C)CC(=O)O[C@H](C)CC(=O)[O-])O
Description: The molecule is a hydroxy monocarboxylic acid anion resulting from the deprotonation of the carboxy group of (3R)-3-{[(3R)-3-{[(3R)-3-{[(3R)-3-hydroxybutanoyl]oxy}butanoyl]oxy}butanoyl]oxy}butanoic acid. A tetramer of (3R)-hydroxybutanoate; the major microspecies at pH 7.3. It derives from a (R)-3-hydroxybutyrate. It is a conjugate base of a (3R)-3-{[(3R)-3-{[(3R)-3-{[(3R)-3-hydroxybutanoyl]oxy}butanoyl]oxy}butanoyl]oxy}butanoic acid.