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Distribution of chemicals from ToxCast Phase 1_v2 and Phase 2 libraries screened in the iodotyrosine deiodinase enzyme assay by general use categories (diagonal stripes, n = 1,034) with ‘inactive’ chemicals from this set (≤ 20% inhibition, grey, n = 994) and chemicals that produced 50% inhibition or greater (red, n = 28) for each use category.
