API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Azelastine

EP Impurity A

Benzoyldiazane Azelastine_EP-Impurity-A
Azelastine

EP Impurity C

2-[(4-chlorophenyl)acetyl]benzoic acid Azelastine_EP-Impurity-C
Azelastine

EP Impurity D

4-(4-chlorobenzyl)phthalazin-1(2H)-one Azelastine_EP-Impurity-D
Azelastine

EP Impurity E

3-(4-chlorobenzylidene)isobenzofuran-1(3H)-one Azelastine_EP-Impurity-E