Aydn A.Akkurt M.Önkol T.Büyükgüngör O.Şahin M.F.2023-04-122023-04-122010-01-2216005368https://hdl.handle.net/20.500.12597/6197In the title compound, C16H11NO4S, the nine-membered fused ring is nearly planar, with maximum deviations from the mean plane of-0.022 (1) Å for the N atom and 0.011 (1) Å for the S atom, and makes a dihedral angle of 53.56 (7)° with the phenyl ring. The crystal structure is stabilized by O-H⋯O and C-H⋯O hydrogen-bonding inter-actions.trueArticle10.1107/S160053680905329X2-s2.0-74349104341