Fig. 2From: A local QSAR model based on the stability of nitrenium ions to support the ICH M7 expert review on the mutagenicity of primary aromatic aminesMutagenicity and ΔΔE distribution of in-house primary aromatic amines. Each bar indicates a compound. Mutagens are shown in red and nonmutagens in green. The aromatic amines are arranged in order of their ΔΔE values (kcal/mol)Back to article page