all hydroxy groups bound to the ring

Full Title

Ketones; Ketenes; Dimeric ketenes (heterocyclic compounds C07D, e.g. beta-lactones C07D305/12); Ketonic chelates > Ketones containing a keto group bound to a six-membered aromatic ring (compounds having a keto group being part of a condensed ring system and being bound to a six-membered aromatic ring C07C49/657 - C07C49/757) > containing hydroxy groups > all hydroxy groups bound to the ring