Fig. 1From: Review on analytical studies of some pharmaceutical compounds containing heterocyclic rings: brinzolamide, timolol maleate, flumethasone pivalate, and clioquinolChemical structure of brinzolamide (BRZ) (a), timolol maleate (TM) (b), flumethasone pivalate (FP) (c), and clioquinol (CL) (d)Back to article page