hAChE/Aβ1-42-IN-1 (Compound 16) is a potent inhibitor of hAChE and Aβ1-42 aggregation. hAChE/Aβ1-42-IN-1 shows acceptable relative safety upon hepG2 cell line and excellent BBB penetration with wide safety margin. hAChE/Aβ1-42-IN-1 has the potential for the research of Alzheimer disease (AD).