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"N"

no-observed-adverse-effect level
Guideline or reference source
ICHQ3D Guideline for elemental impurities
ICHS10 Photosafety evaluation of pharmaceuticals
Definition
Greatest concentration or amount of a substance, found by experiment or observation, which causes no detectable adverse alteration of morphology, functional capacity, growth, development, or life span of the target organism under defined conditions of exposure.
Abbreviation for
NOAEL
Related Term
no-observed effect level
safety factor
 

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