SMILES: C1=CC=C2C(=C1)C(=CC(=O)C2=O)S(=O)(=O)O
Description: The molecule is an arenesulfonic acid that is 1,2-naphthoquinone substituted at position 4 with a sulfonic acid group. Used principally as a reagent in colorimetric determinations. It has a role as a colorimetric reagent. It is an arenesulfonic acid and a naphthalenone.