Acta Crystallographica Section E (Jun 2009)

11-(3-Chloro-2-hydroxypropoxy)-2,3,9-trimethoxychromeno[3,4-b]chromen-12(6H)-one

  • Supranee Sangthong,
  • Thapong Teerawatananond,
  • Chuttree Phurut,
  • Nattaya Ngamrojanavanich,
  • Nongnuj Muangsin

DOI
https://doi.org/10.1107/S1600536809018595
Journal volume & issue
Vol. 65, no. 6
pp. o1372 – o1372

Abstract

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In the title compound, C22H21ClO8, the rotenoid core is nearly planar (r.m.s. deviation 0.114 Å), with the largest deviations from the least-squares plane being 0.286 (3) and 0.274 (2) Å. An intermolecular O—H...O hydrogen bond links two molecules into a centrosymmetric dimer having an R22(18) ring motif.