| OBO ID: CHEBI:143130 |
| Term Name: | impurity | Search Ontology: | |
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| Definition: | A chemical role played by any unwanted chemical substance inside a confined amount of liquid, gas, or solid, which differs from the chemical composition of the material or compound. For example, an impurity can be an undesired by-product of a chemical reaction or manufacturing process, a drug contaminant, or can be created upon degradation during storage. | ||
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| Ontology: | ChEBI ( EBI ) |
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