The molecule is the conjugate base of firefly sulfoluciferin; major species at pH 7.3. It is an aryl sulfate oxoanion and a monocarboxylic acid anion. It is a conjugate base of a firefly sulfoluciferin. It is an enantiomer of a firefly L-sulfoluciferin(2-).
(4S)-2-(6-sulfonatooxy-1,3-benzothiazol-2-yl)-4,5-dihydro-1,3-thiazole-4-carboxylate