Ipratropium Bromide EP Impurity C CAS 552-63-6
| CAS No. | 552-63-6 |
| Molecular Formula | C9H10O3 |
| Molecular Weight | 166.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ipratropium Bromide EP Impurity C (CAS 552-63-6) is a certified pharmaceutical impurity reference standard with the molecular formula C9H10O3 and a molecular weight of 166.17 g/mol.
Structurally, Ipratropium Bromide EP Impurity C (C9H10O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 166.17 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Ipratropium Bromide EP Impurity C under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H10O3 |
| Molecular Weight | 166.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Ipratropium Standards
- Ipratropium Impurity 30 (CAS 259092-15-4)
- Ipratropium Impurity 31 (CAS 3423-25-4)
- Ipratropium Bromide Impurity 36 (CAS CATO-C4X-166536)
- Ipratropium Impurity 11 (CAS 5894-79-1)
- Ipratropium Bromide EP Impurity D (CAS 492-38-6)
- Ipratropium Impurity 17 (CAS 17838-69-6)
- Ipratropium Impurity 22 (CAS 3979-14-4)
- Ipratropium Impurity 25 (CAS CATO-C4X-166525)
Recommended Standards
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- Tofacitinib Impurity 27 (CAS 2028267-73-2)
- Epinephrine /Adrenaline Impurity 125 (CAS CATO-C4X-1849125)
- Lasmiditan Impurity 61 (CAS CATO-C4X-247861)
- N-Phenyl-benzimidoyl chloride (CAS 4903-36-0)
- Bisacodyl Impurity 21 (CAS CATO-C4X-203721)
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- 2-Bromo-9,9-difluoro-9H-fluorene (CAS 1823405-12-4)
- Mast Cell Degranulating Peptide (CAS 83856-13-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com