343927-62-8

Roflumilast impurity 22 3-Chloro-4-pyridinamine1-oxide 4-amino-3-chloropyridine 1-oxide 4-Amino-3-chloropyridine N-oxide 3-chloro-1-hydroxypyridin-4-imine 4-Pyridinamine, 3-chloro-, 1-oxide 4-Pyridinamine,3-chloro-,1-oxide(9CI)