3,7,30-Trioxa-9,22,27-triazapentacyclo(20.8.2.1(6,10).1(17,21).0(2,4))tetratriacontane, treflorine deriv. 82400-19-9 B820915K182 N-Methyltrenudone NSC354643 TRENUDONE, N-METHYL (B820915K182) Treflorine, 3'-methyl-6'-oxo Treflorine, 3'-methyl-6'-oxo-