Azelastine Impurities

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Impurity structure Parent Drug Name Name of Impurity Catalogue No. CAS No.
Azelastin Inhouse impurity D Azelastine

Azelastin Inhouse impurity D

VE005974 N/A
Azelastine EP Impurity A Azelastine

Azelastine EP Impurity A

VL1100001 613-94-5
Azelastine EP Impurity B Azelastine

Azelastine EP Impurity B

VE006451 110406-94-5
Azelastine EP Impurity B (HCl salt) Azelastine

Azelastine EP Impurity B (HCl salt)

VL1100002 117078-69-0
Azelastine EP Impurity C Azelastine

Azelastine EP Impurity C

VL1100003 53242-76-5
Azelastine EP Impurity D Azelastine

Azelastine EP Impurity D

VL1100004 53242-89-9
Azelastine EP Impurity E Azelastine

Azelastine EP Impurity E

VL1100005 20526-97-0
Azelastine Impurity 1 (HCl Salt) Azelastine

Azelastine Impurity 1 (HCl Salt)

VE0012503 N/A
Azelastine Impurity 14 (HCl Salt) Azelastine

Azelastine Impurity 14 (HCl Salt)

VE0012512 19869-42-2
Azelastine Impurity 2 (HCl Salt) Azelastine

Azelastine Impurity 2 (HCl Salt)

VE0012504 N/A
Azelastine Impurity 3 (HCl Salt) Azelastine

Azelastine Impurity 3 (HCl Salt)

VE0012507 N/A
Azelastine Impurity 4 (HCl Salt) Azelastine

Azelastine Impurity 4 (HCl Salt)

VE0012502 N/A
Azelastine Impurity 6 (2HCl Salt) Azelastine

Azelastine Impurity 6 (2HCl Salt)

VE0012508 169123-29-9
Azelastine Impurity 7 Azelastine

Azelastine Impurity 7

VE0012509 791758-74-2
Azelastine N-Oxide Azelastine

Azelastine N-Oxide

VL1100010 640279-88-5
Azelastine-D4 (HCl Salt) Azelastine

Azelastine-D4 (HCl Salt)

DVE00176 N/A
N-Desmethyl Azelastine Azelastine

N-Desmethyl Azelastine

VE009747 47491-38-3
N-Desmethyl Azelastine-D4 (HCl Salt) Azelastine

N-Desmethyl Azelastine-D4 (HCl Salt)

DVE00177 N/A
(E)-N'-(1-methylazepan-4-ylidene)acetohydrazide Azelastine

(E)-N'-(1-methylazepan-4-ylidene)acetohydrazide

VE0010187 N/A
(R)-Azelastine HCl Azelastine

(R)-Azelastine HCl

VL1100006 153408-28-7
(R)-Azelastine N-Oxide (Mixture of Diastereomers) Azelastine

(R)-Azelastine N-Oxide (Mixture of Diastereomers)

Vl1100011 1346617-18-2
(S)-Azelastine N-Oxide (Mixture of Diastereomers) Azelastine

(S)-Azelastine N-Oxide (Mixture of Diastereomers)

Vl1100012 1346617-06-8
4-[(4-Chlorophenyl)methyl]-2-[2-(1-methyl-2-pyrrolidinyl)ethyl]-1(2H)-phthalazinone Hydrochloride Azelastine

4-[(4-Chlorophenyl)methyl]-2-[2-(1-methyl-2-pyrrolidinyl)ethyl]-1(2H)-phthalazinone Hydrochloride

VE0010019 117078-70-3