Benzoyl hydrazine
CAS Number: 613-94-5‬
Molecular Formula: C7H8N2O
Molecular Weight: 136.15

Azelastine EP Impurity B
CAS Number: 117078-69-0
Molecular Formula: C14H22ClN3O
Molecular Weight: 283.80

Azelastine EP Impurity C
CAS Number: 53242-76-5
Molecular Formula: C15H11ClO3
Molecular Weight: 274.70

Azelastine EP Impurity D
CAS Number: 53242-‬88-9
Molecular Formula: C15H11ClN2O
Molecular Weight: 270.71

Azelastine N-Oxide
CAS Number: 640279-88-5
Molecular Formula: C22H24ClN3O2
Molecular Weight: 397.90

Phenylephrine EP Impurity A Hydrochloride
CAS Number: 4779-94-6
Molecular Formula: C8H12ClNO2
Molecular Weight: 189.64

Phenylephrine EP Impurity C HCl
CAS Number: 94240-17-2
Molecular Formula: C9H12ClNO2
Molecular Weight: 201.65

Phenylephrine Impurity D hydrochloride
CAS Number: 1367567-95-0(free base)
Molecular Formula: C16H20ClNO2
Molecular Weight: 293.80