Ketotifen Impurity 10 HCl CAS CATO-C4X-204610
| CAS No. | CATO-C4X-204610 |
| Molecular Formula | C19H19NOS |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C19H19NOSHCl, Ketotifen Impurity 10 HCl contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 345.88 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Ketotifen Impurity 10 HCl (CAS CATO-C4X-204610) is a certified pharmaceutical impurity reference standard with the molecular formula C19H19NOSHCl and a molecular weight of 345.88 g/mol.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Ketotifen Impurity 10 HCl meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H19NOS HCl |
| Molecular Weight | 345.88 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ketotifen Standards
- Ketotifen Impurity 23 (CAS 111428-56-9)
- Ketotifen Impurity 9 HCl (CAS 1227458-03-8)
- Ketotifen EP Impurity C (CAS 126939-27-3)
- Ketotifen EP Impurity E (CAS 1346603-71-1)
- Ketotifen EP Impurity F (Mixture of Enol and Ketone) (CAS 34580-09-1)
- Ketotifen (CAS 34580-13-7)
- Ketotifen Hydrogen Fumarate (CAS 34580-14-8)
- Ketotifen Impurity 19 (CAS 34580-20-6)
Recommended Standards
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- Besudil Impurity 9 (CAS 2242424-54-8)
- Fluvoxamine Maleate EP Impurity G (CAS CATO-C4X-195129)
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- 7-Methyl-1H-pyrrolo[2,3-c]pyridin-3-amine (CAS 1190314-01-2)
- (R)-2-Hydroxybutanamide (CAS 206358-12-5)
- Di(1H-pyrrol-1-yl)methane (CAS 54063-11-5)
- 4-Ethoxy-2,2-dimethyl-1,2,3,4-tetrahydroquinoline (CAS 412324-47-1)
- N-(3-Ethyl-4-methyl-2-phenylisoxazolidin-5-yl)-N-phenylhydroxylamine (CAS 77425-84-4)
- Neuropeptide Y (2-36) (human, rat) trifluoroacetate salt (CAS 123139-39-9)
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