Indole-3-carbaldehyde Semicarbazone Derivatives: Synthesis, Characterization, and Antibacterial Activities

Table 2

Minimum inhibitory concentration (MIC) values obtained for the compounds 1–4 and tetracycline against Gram-positive (Staphylococcus aureus and Bacillus subtilis) and Gram-negative (Escherichia coli and Pseudomonas aeruginosa) bacterial strains.

Compound	MIC (μg/mL)
	E. coli	P. aeruginosa	S. aureus	B. subtilis
1	>200	>200	100	100
2	>200	>200	150	150
3	>200	>200	>200	>200
4	>200	>200	>200	>200
Tetracycline	<12.5	<12.5	<12.5	12.5