Category starting in alphabetical order :

Azelastine

Azelastine EP Impurity A ;
Azelastine EP Impurity A ;
CAS No. : 613-94-5 ;
Molecular Formula :

C7H8N2O ;

Azelastine EP Impurity B ;
Azelastine EP Impurity B ;
CAS No. : 117078-69-0 (HCl) ;
Molecular Formula :

C14H21N3O (base) ; C14H22ClN3O (HCl) ; 

Azelastine EP Impurity C ;
Azelastine EP Impurity C ;
CAS No. : 53242-76-5 ;
Molecular Formula :

C15H11ClO3 ;

Azelastine EP Impurity D ;
Azelastine EP Impurity D ;
CAS No. : 53242-88-9 ;
Molecular Formula :

C15H11ClN2O ;

Azelastine EP Impurity E ;
Azelastine EP Impurity E ;
CAS No. : 20526-97-0 ;
Molecular Formula :

C15H9ClO2 ;

Azelastine HCl ;
Azelastine HCl ;
CAS No. : 79307-93-0 ;
Molecular Formula :

C22H25Cl2N3O ;