API |
IMPURITY |
CHEMICAL NAME |
STRUCTURE |
Fentanyl |
EP Impurity B |
N-phenyl-N-(piperidin-4-yl)propanamide |  |
Fentanyl |
EP Impurity E |
benzaldehyde |  |
Fentanyl |
EP Impurity F |
aniline (phenylamine), | |
Fentanyl |
EP Impurity G |
N-phenylpropanamide |  |
Fentanyl |
Fentanyl Related Compound A |
(2-bromoethyl)benzene |  |