Tiotropium Bromide EP Impurity G-d3 Bromide CAS CATO-C4X-176437
| CAS No. | CATO-C4X-176437 |
| Molecular Formula | - |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Tiotropium Bromide EP Impurity G-d3 Bromide (C9H13D3NO2Br) contains deuterium isotope labeling, an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 253.15 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Tiotropium Bromide EP Impurity G-d3 Bromide (CAS CATO-C4X-176437) is a certified pharmaceutical impurity reference standard with the molecular formula C9H13D3NO2Br and a molecular weight of 253.15 g/mol.
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.
As a certified reference material (CRM), Tiotropium Bromide EP Impurity G-d3 Bromide 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 | C9H13D3NO2 Br |
| Molecular Weight | 253.15 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Tiotropium Standards
- Tiotropium Impurity 26 (CAS 10299-90-8)
- Tiotropium Bromide Impurity 8 Potassium Salt (CAS 10304-09-3)
- Tiotropium Bromide EP Impurity H (Mixture of Enantiomers) (CAS 1044148-31-3)
- Tiotropium Bromide EP Impurity H-d3 Bromide (Mixture of Enantiomers) (CAS 1044148-31-3（unlabeled）)
- Tiotropium-d6 (CAS 1126775-44-7)
- Tiotropium-D3 Bromide (CAS 1127226-56-5)
- Tiotropium Bromide EP Impurity B (CAS 136310-64-0)
- Tiotropium EP Impurity D (CAS 136310-66-2)
Recommended Standards
- Metoprolol Impurity 49 (CAS CATO-C4X-136749)
- Mianserin Impurity 66 (CAS CATO-C4X-136966)
- Evocalcet Impurity 65 (CAS CATO-C4X-248565)
- Ethyl thieno[2,3-b]pyridine-5-carboxylate (CAS 99429-77-3)
- Lasmiditan Impurity 27 (CAS CATO-C4X-247827)
- (11 β,16 β)-11-Hydroxy-16-methyl-17,21-bis(1-oxopropoxy)-pregna-1,4-diene-3,20-dione (CAS 71934-47-9)
- 1-(2-Benzylphenoxy)propan-2-ol (CAS 5029-76-5)
- 4-(4-Bromophenyl)-3,6-dihydro-2H-pyran (CAS 223555-87-1)
- 4-(2-Morpholinoethyl)thiazol-2-amine (CAS 376636-15-6)
- Tirzepatide Impurity 48 (CAS CATO-C4X-324048)
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