Skip to main content
An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

NALT Concept Space
U.S. Department of Agriculture

NALT Full

Concept information

  1. Fields of Study
  2. animal and human health
  3. medical sciences
  4. toxicology
  5. toxicity testing
  6. inhibitory concentration 50
  1. Animals, Livestock, One Health
  2. animal and human health
  3. medical sciences
  4. toxicology
  5. toxicity testing
  6. inhibitory concentration 50
  1. Fields of Study
  2. animal science
  3. medical sciences
  4. toxicology
  5. toxicity testing
  6. inhibitory concentration 50
  1. Animals, Livestock, One Health
  2. animal science
  3. medical sciences
  4. toxicology
  5. toxicity testing
  6. inhibitory concentration 50
  1. Research, Technology, Methods
  2. research
  3. animal research
  4. toxicology
  5. toxicity testing
  6. inhibitory concentration 50
  1. Research, Technology, Methods
  2. methodology
  3. testing
  4. toxicity testing
  5. inhibitory concentration 50

Preferred term

inhibitory concentration 50

Type

  • Topic

Definition

  • Information The concentration of a compound needed to reduce population growth of organisms, including eukaryotic cells, by 50% in vitro. Though often expressed to denote in vitro antibacterial activity, it is also used as a benchmark for cytotoxicity to eukaryotic cells in culture.

    Source: NAL Thesaurus Staff

    Type: Concept definition

Broader concept

Related concepts

Synonyms

  • 50% inhibitory concentration
  • IC 50
  • IC-50
  • IC50

In other languages

URI

https://lod.nal.usda.gov/nalt/68543

Download this concept:

RDF/XML TURTLE JSON-LD Created 10/23/06, last modified 10/11/17