A histamine-H1-receptor antagonist, Azelastine is used in the treatment of rhinitis.It shows anti-histamine effect, mast-cell stabilizing effect and anti-inflammatory effect. Reference standards of Azelastine API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
Azelastine
Catalogue No.:PA 28 59000
CAS :
Molecular Formula : C22H24ClN3O
Molecular Weight : 381.90
Benzoyl Hydrazine
Catalogue No.:PA 01 98010
Molecular Formula : C7H8N2O
Molecular Weight : 136.15
N'-(1-Methylazepan-4-yl)benzohydrazine Hydrochloride
Catalogue No.:PA 01 98020
Molecular Formula : C14H22ClN3O
Molecular Weight : 283.8
2-[(4-Chlorophenyl)acetyl]benzoic Acid
Catalogue No.:PA 01 98030
Molecular Formula : C15H11ClO3
Molecular Weight : 274.7
4-(4-Chlorobenzyl)phthalazin-1(2H)-one
Catalogue No.:PA 01 98040
Molecular Formula : C15H11ClN2O
Molecular Weight : 270.71
3-(4-Chlorobenzal)phthalide
Catalogue No.:PA 01 98050
Molecular Formula : C15H9ClO2
Molecular Weight : 256.68
N-Desmethyl Azelastine
Catalogue No.:PA 01 98510
Molecular Formula : C21H22ClN3O
Molecular Weight : 367.87
Azelastine 3-Chloro-Isomer
Catalogue No.:PA 01 98520
Molecular Weight : 381.9
Azelastine N-Oxide (Mixture of Diastereomers)
Catalogue No.:PA 01 98530
Molecular Formula : C22H24ClN3O2
Molecular Weight : 397.9
Azelastine 5-Member-Cyclic-Isomer Hydrochloride
Catalogue No.:PA 01 98540
Molecular Formula : C22H25Cl2N3O
Molecular Weight : 418.36
4-Benzyl-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one
Catalogue No.:PA 01 98550
Molecular Formula : C22H25N3O
Molecular Weight : 347.45
4-(4-Chlorophenyl)-1H-2,3-benzoxazin-1-one
Catalogue No.:PA 01 98560
Molecular Formula : C14H8ClNO2
Molecular Weight : 257.67
Azelastine 3-Chloro-Isomer Hydrochloride
Catalogue No.:PA 01 98570
Azelastine-13C,d3
Catalogue No.:PA STI 009490
Molecular Formula : C2113CH21D3ClN3O
Molecular Weight : 385.91
Azelastine-d3
Catalogue No.:PA STI 009500
Molecular Formula : C22H21D3ClN3O
Molecular Weight : 384.92
Azelastine-13C,d3 N-Oxide (Mixture of Diastereomers)
Catalogue No.:PA STI 009510
Molecular Formula : C2113CH21D3ClN3O2
Molecular Weight : 401.91
N-Desmethyl Azelastine-d4
Catalogue No.:PA STI 028070
Molecular Formula : C21H18D4ClN3O
Molecular Weight : 371.9
N'-(1-Methylazepan-4-yl)benzohydrazine-d5
Catalogue No.:PA STI 060420
Molecular Formula : C14H17D5ClN3O
Molecular Weight : 288.83
1-Methylazepan-4-one Hydrochloride
Catalogue No.:PA 28 0591000
Molecular Formula : C7H14ClNO
Molecular Weight : 163.65
Mixture of two isomers: Z and E or (Cis and Trans)
Catalogue No.:PA 28 0591001
Molecular Weight : 256.69
Azelastine D4 hydrochloride
Catalogue No.:PA STI 088908
Molecular Formula : C22H21D4Cl2N3O
Molecular Weight : 422.39
(R)-4-[(4-Chlorophenyl)methyl]-2-(hexahydro-1-methyl-1-oxido-1H-azepin-4-yl)-1(2H)-phthalazinone;
Catalogue No.:PA 28 0591002
4-(Chlorobenzyl)-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one
Catalogue No.:PA 28 0591003
(S)-Azelastine N-Oxide
Catalogue No.:PA 28 0591004
Azelastine HCl Impurity E (IMP/15/18)
Catalogue No.:PA IMP 15 18
Molecular Formula : NA
Molecular Weight : NA
Azelastine HCl Impurity D (IMP/12/18)
Catalogue No.:PA IMP 12 18
N-Nitroso Azelastine
Catalogue No.:PA 28 0591005
Molecular Formula : C14H20N4O2
Molecular Weight : 276.34
N-Benzoylnitrous hydrazide
Catalogue No.:PA 28 0591006
Molecular Formula : C7H7N3O2
Molecular Weight : 165.15
4-(2-Chlorobenzyl)-2-(1-methylazepan-4-yl)phthalazin-1(2H)-one
Catalogue No.:PA 28 0591007
N-(4-Aminobutyl)-N-ethylisoluminol
Catalogue No.:PA 28 0591008
Azelastine Impurity (Mixture OF Isomers)
Catalogue No.:PA 28 0591009
Molecular Formula : C9H17N3O
Molecular Weight : 183.26
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