Table 6.

MIC of some antiseptics and disinfectants against gram-positive and gram-negative bacteriaa

Chemical agentMIC (μg/ml) for:
S. aureusb E. coliP. aeruginosa
Benzalkonium chloride0.550250
Benzethonium chloride0.532250
Cetrimide41664–128
Chlorhexidine0.5–115–60
Hexachlorophene0.512.5250
Phenol2,0002,0002,000
o-Phenylphenol1005001,000
Propamine isethionate264256
Dibromopropamidine isethionate1432
Triclosan0.15>300
  • a Based on references226 and 440.

  • b MICs of cationic agents for some MRSA strains may be higher (see Table 10).