🦠microbiology review

Cresols

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

Cresols are a group of aromatic organic compounds derived from phenol, commonly used as disinfectants and antiseptics. They are effective in controlling microbial growth due to their ability to denature proteins and disrupt cell membranes.

5 Must Know Facts For Your Next Test

  1. Cresols can be found in three isomeric forms: ortho-cresol, meta-cresol, and para-cresol.
  2. These compounds are particularly effective against Gram-positive bacteria and certain types of fungi.
  3. Cresols are often used in combination with other disinfectants to broaden their antimicrobial spectrum.
  4. They are toxic to humans at high concentrations and must be handled with care during use.
  5. Common applications include their use in industrial settings, healthcare facilities, and household cleaning products.

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