Table 3.

Number of chemicals modeled for each end point, used for the training and evaluation of models.

End point	Number of chemicals
VT	11,886
NT	11,871
EPA categories	11,755
GHS categories	11,845
Discrete $\mathrm{L}{\mathrm{D}}_{50}$ values	8,908

Note: See Supplemental Material 1 (training set) and Supplemental Material 2 (evaluation set). EPA, U.S. Environmental Protection Agency; GHS, U.N. Globally Harmonized System of Classification and Labeling of Chemicals; $\mathrm{L}{\mathrm{D}}_{50}$, dose of a substance that would be expected to kill half the animals in a test group; NT, non-toxic/toxic; VT, very toxic/not very toxic.