hCAI/II-IN-8 (Compound 8) is a hydrazide derivative based on 4-hydroxybenzaldehyde. hCAI/II-IN-8 primarily targets human carbonic anhydrase isomerase I ( hCA I ) and II ( hCA II ) for inhibition ( IC 50 = 21.35 ± 0.39 nM (hCA I); 7.12 ± 0.12 nM (hCA II)). hCAI/II-IN-8 inhibits AChE and BChE as well( IC 50 = 46.27 ±0.75 nM ( AChE ); 43.38 ± 0.83 nM ( BChE ))...