Tiotropium impurity 50 CAS CATO-C4X-176450
| CAS No. | CATO-C4X-176450 |
| Molecular Formula | C17H23NO4 |
| Molecular Weight | 305.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Tiotropium impurity 50 (CAS CATO-C4X-176450) is a certified pharmaceutical impurity reference standard with the molecular formula C17H23NO4 and a molecular weight of 305.37 g/mol.
Based on its molecular formula C17H23NO4, Tiotropium impurity 50 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 305.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Tiotropium impurity 50 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 | C17H23NO4 |
| Molecular Weight | 305.37 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Tiotropium Standards
- Tiotropium impurity 42 (CAS 2512209-13-9)
- Tiotropium impurity 48 (CAS CATO-C4X-176448)
- Tiotropium Bromide Impurity 14 (CAS 61616-97-5)
- Tiotropium Bromide Impurity 23 (CAS 54725-48-3)
- Tiotropium Impurity 41 (CAS CATO-C4X-176441)
- Tiotropium impurity 45 (CAS 535995-21-2)
- Tiotropium Bromide EP Impurity E; (CAS 26447-85-8)
- Tiotropium EP Impurity D (CAS 136310-66-2)
Recommended Standards
- Atropine Impurity 53 (CAS CATO-C4X-148953)
- Imidafenacin Impurity 1 (CAS 170105-20-1)
- Atropine Impurity 51 (CAS CATO-C4X-148951)
- Epalrestat Impurity 17 (CAS 1800597-47-0)
- Esomeprazole Methyl Impurity H193 (CAS 784143-42-6&89352-76-1)
- Sotagliflozin Impurity 8 (CAS CATO-C4X-30048)
- Dolutegravir Impurity 6 (CAS 2244161-72-4)
- Atrazine-13C3 (CAS 1443685-80-0)
- 2,5-Dichloro-3-(difluoromethoxy)cinnamic acid (CAS 1807333-74-9)
- 1-{4h,6h,7h-thieno[3,2-c]thiopyran-2-yl}methanamine (CAS 933696-87-8)
- 1,4-Hexadiene, polymer with ethene and 1-propene (CAS 25038-37-3)
- 2,2'-((((2,5-Diiodo-1,4-phenylene)bis(oxy))bis(ethane-2,1-diyl))bis(oxy))bis(tetrahydro-2H-pyran) (CAS 1956377-70-0)
- Galantamine EP Impurity F (ent-Galantamine) (CAS 60384-53-4)
- Des-Val23-Tirzepatide (CAS CATO-CPTD788950)
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