Ketotifen is used to treat allergic conjunctivitis. It is sold under the brand name Zaditor. It is most commonly sold as a salt with fumaric acid, ketotifen fumarate, and is available in two forms. Reference standards of Ketotifen API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
Ketotifen
Catalogue No.:PA 11 06000
CAS :
Molecular Formula : C19H19NOS
Molecular Weight : 309.43
Ketotifen-d3 Fumarate
Catalogue No.:PA STI 055300
Molecular Formula : C23H20D3NO5S
Molecular Weight : 428.52
4-(1-Methylpiperidin-4-ylidene)-9,10-dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-ol
Catalogue No.:PAI 11 004010
Molecular Formula : C19H21NOS
Molecular Weight : 311.44
Catalogue No.:PA IPIPRS 116 14
Molecular Formula :
Molecular Weight : NA
Ketotifen impurity G (Y0000161)
Catalogue No.:PA EPY0000161
Molecular Formula : NA
Ketotifen for peak identification (Y0001617)
Catalogue No.:PA EPY0001617
Ketotifen hydrogen fumarate (Y0001619)
Catalogue No.:PA EPY0001619
4-(1-Methylpiperidin-4-yl)-9,10-dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-ol
Catalogue No.:PAI 11 004011
Molecular Formula : C19H23NOS
Molecular Weight : 313.46
10-Methoxy-4H-benzo[4,5]cyclohepta[1,2- b]thiophen-4-one
Catalogue No.:PA 11 0061000
Molecular Formula : C14H10O2S
Molecular Weight : 242.29
N-Desmethylketotifen Hydrogen Fumarate
Catalogue No.:PA 11 0071000
Molecular Formula : C22H21NO5S
Molecular Weight : 411.47
2-(4-(10-oxo-9,10-Dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-ylidene)piperidin-1-yl)succinic Acid
Catalogue No.:PA 11 0061001
3-Chloro-4-(piperidin-4-ylidene)-4,9-dihydro-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-one
Catalogue No.:PA 11 0061002
Molecular Formula : C18H16ClNOS
Molecular Weight : 329.84
2-Chloro-4-(piperidin-4-ylidene)-4,9-dihydro-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-one
Catalogue No.:PA 11 0061003
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