Biological Magnetic Resonance Data Bank

A Repository for Data from NMR Spectroscopy on Proteins, Peptides, Nucleic Acids, and other Biomolecules
Member of WWPDB


5,7-dihydroxy-3-(4-methoxyphenyl)chromen-4-one synonyms

Biochanin A


Graphical representations:


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Molecular Formula: C16H12O5

Natural Isotopic Abundance Mass: 284.26348

Mono-Isotopic Molecular Masses:

  • C12N14: 284.068473484
  • C13N14: 300.122150892
  • C12N15: 284.068473484
  • C13N15: 300.122150892

InChI string: InChI=1S/C16H12O5/c1-20-11-4-2-9(3-5-11)12-8-21-14-7-10(17)6-13(18)15(14)16(12)19/h2-8,17-18H,1H3

MMCD: cq_17353
PDB Compound ID: QSO
PubChem Compound (CID): 5280373

Reference data were obtained primarily from the PubChem database.

Three dimensional molecular rendering uses Jmol.

InChI string and atom numbering calculated using ALATIS (Hesam Dashti, William M. Westler, John L. Markley, Hamid R. Eghbalnia, "Unique identifiers for small molecules enable rigorous labeling of their atoms", Scientific Data 4, Article number: 170073 (2017), doi:10.1038/sdata.2017.73,