The molecule is a monocarboxylic acid anion that is the conjugate base of biotin sulfoxide; major species at pH 7.3. It derives from a biotinate. It is a conjugate base of a biotin sulfoxide.
5-[(3aS,4S,6aR)-2,5-dioxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoate