Ipratropium Impurity 44 CAS CATO-C4X-166544
| CAS No. | CATO-C4X-166544 |
| Molecular Formula | C20H30NO4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ipratropium Impurity 44 (C20H30NO4I) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, iodine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a process- or degradation-related impurity, Ipratropium Impurity 44 (CAS CATO-C4X-166544, C20H30NO4I) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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), Ipratropium Impurity 44 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 | C20H30NO4 I |
| Molecular Weight | 475.36 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related Ipratropium Standards
- Ipratropium Impurity 24 (Mixture of Isomers) (CAS 17812-46-3)
- Ipratropium Impurity 17 (CAS 17838-69-6)
- (S)-Ipratropium Bromide EP Impurity E Formate (CAS 183626-76-8)
- Ipratropium Bromide EP Impurity E (CAS 22235-81-0)
- Ipratropium Bromide (CAS 22254-24-6)
- Ipratropium Impurity 30 (CAS 259092-15-4)
- Ipratropium Bromide Impurity 33 (CAS 2784-21-6)
- Ipratropium Impurity 31 (CAS 3423-25-4)
Recommended Standards
- Lenvatinib Impurity 150 (CAS 2713130-46-0)
- Eravacycline impurity 17 (CAS 1431558-62-1)
- Procaterol Impurity 1 (CAS 59827-93-9)
- 2,3,4,5-Tetraphenylthiophene (CAS 1884-68-0)
- 8-Fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoline (CAS 2813233-26-8)
- 2-Benzyl-1,3-diphenylpropane-2-thiol (CAS 95136-01-9)
- 1-Methyl-1<I>H</I>-pyrazole-5-carboxylic acid ethyl ester (CAS 197079-26-8)
- Methyl 4-amino-3-methylisoxazole-5-carboxylate (CAS 83988-30-1)
- 2-Chloro-4,4-Difluoro-6-Methyl-2,5-Cyclohexadien-1-One (CAS 494796-68-8)
- Hexapeptide-1 (CAS CATO-CPTD788821)
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