Category
Ketotifen
CAS Number
Ketotifen STD - 34580-14-8 : IMP - A - 4673-38-5
Alternate CAS Number
34580-13-7 (free base)
Molecular Formula
Ketotifen STD - C23H23NO5S : IMP - A - C19H19NS
Molecular Weight
Ketotifen STD - 425.50 g/mol : IMP - A - 293.43 g/mol
Synonym

Ketotifen Fumarate Salt - 4-(1-Methylpiperidin-4-ylidene)-4,9-dihydro-10Hbenzo[4,5]cyclohepta[1,2-b]thiophen-10-one hydrogen
(E)-butenedioate; 4,9-Dihydro-4-(1-methyl-4-piperidinylidene)-10H-benzo[4,5]cyclohepta[1,2-b]thiophen-10-one (2E)-2-Butenedioate;

Ketotifen Fumarate EP Impurity - A - 4-(4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-ylidene)-1-methylpiperidine ; 4-(4H-Benzo[4, 5]cyclohepta[1, 2-b]thiophen-4-ylidene)-1-methylpiperidine ; 

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Purity:

Above - 95.0%

Technical Data:

We will provide complete documentation support for every Standard Material. All analytical reports such as ¹H NMR, ¹³C NMR, Mass, FT-IR, HPLC Purity/GC Purity/QNMR Purity, Water content by KF/ Loss on Drying/TGA (Thermo-gravimetric Analysis). Certificate of Analysis with potency report. Each Standard Material SER (Structure Elucidation Report) with NMR, Mass, IR spectral interpretation. This whole analytical document can be included in eCTD, ANDA, DMF submissions to regulatory agencies.

Ketotifen Chemical Reference Substance (CRS) is used in chromatographic analysis to ensure accurate identification of ketotifen peaks. It serves as a standard reference, helping to verify retention times and confirm system suitability, thereby ensuring precise and reliable results in analytical assays.