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Table 4 Inhibition zone diameter (mm) of the tested chemicals that showed antimicrobial activities against the tested microorganisms

From: Approaches towards the synthesis of a novel class of 2-amino-5-arylazonicotinate, pyridazinone and pyrido[2,3-d]pyrimidine derivatives as potent antimicrobial agents

Compound No. Inhibition zone diameter in mm ± (standard deviation)
E. coli P. aeruginosa B. subtilis S. aureus C. albicans
1a 20 (0.04) 0 23 (0.02) 12 (0.02) 34 (0.05)
2a 0 0 12 (0.04) 14 (0.10) 0
2c 0 0 12 (0.02) 10 (0.03) 0
2d 0 0 12 (0.03) 10 (0.07) 0
2e 0 0 11 (0.07) 8 (0.07) 0
2g 0 0 16 (0.04) 11 (0.05) 0
8a 0 0 30 (0.07) 0 0
8b 0 0 28 (0.10) 0 0
8c 0 0 23 (0.02) 0 0
8d 0 0 25 (0.09) 0 0
8e 0 0 29 (0.03) 0 0
8f 0 0 27 (0.10) 0 0
8h 0 0 26 (0.10) 0 0
10a 0 0 22 (0.20) 0 0
10b 0 0 25 (0.02) 0 0
10c 0 0 29 (0.20) 0 0
11b 0 0 13 (0.06) 6 (0.06)  
12 0 0 11(0.10) 4 (0.04)  
13a 0 0 16 (0.05) 0 0
13b 0 0 17 (0.10) 0 0
15a 0 0 19 (0.02) 12 (0.07) 0
15b 0 0 23 (0.03) 9 (0.2) 0
16 0 0 25 (0.09) 14 (0.02) 0
DMSO (solvent) 0 0 0 0 0
a Ampicillin 23 (0.14) 17 (0.07) 21 (0.05) 26 (0.07) 0
b Cycloheximide - - - - 0
  1. DMSO = Dimethyl sulfoxide, a Ampicillin antibacterial drug, b cycloheximide antifungal drug, not tested.