Abstact: Different quinazoline derivatives have been reported for their antibacterial, antifungal, anti-
HIV, anthelmintic, CNS depressant and antitubercular activities. In this work, we evaluated antimicrobial
potential of 3-amino (substituted) -2-phenyl quinazolin-4-ones. The antibacterial efficacy was performed
against the bacterial strains S1+,S2+, S8+,E6-,V6- and SG7- using agar serial dilution method. Ciprofloxacin
was used as reference antibacterial compound.