LD50

Definition

LD50, or lethal dose 50%, is a measure used in toxicology to determine the toxicity of a substance, indicating the dose required to kill half (50%) of a test population. It provides an essential benchmark for understanding the relative danger of chemicals, including those studied in organic chemistry.

Related terms

Toxicology: The study of the adverse effects of chemicals on living organisms.

Dose: response relationship - A relationship that describes how the potency and duration of a substance's effects change as its dosage changes.

Acute toxicity: The adverse effects of a substance that result either from a single exposure or from multiple exposures in a short period (up to 24 hours)