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Osmora Scientific Glossary

Endotoxin

A heat-stable lipopolysaccharide from the outer membrane of Gram-negative bacteria, measured as a specific contamination category.

In plain language

A bacterial contaminant that can persist even after the bacteria are gone.

Why it matters in research

Endotoxin is assessed on its own; a purity figure does not describe it.

Where you’ll encounter it

On a COA as a bacterial-endotoxin result.

Related terms

Purity

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