42331-70-4 5-22-09-00331 (Beilstein Handbook Reference) BRN 0452366 N,N'-Bis(4-methyl-2-pyridinyl)-2-butyl-2-ethylpropanediamide Propanediamide, N,N'-bis(4-methyl-2-pyridinyl)-2-butyl-2-ethyl-