Ciprofibrate EP Impurity B CAS 52179-26-7
| CAS No. | 52179-26-7 |
| Molecular Formula | C9H8Cl2O |
| Molecular Weight | 203.07 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 process- or degradation-related impurity, Ciprofibrate EP Impurity B (CAS 52179-26-7, C9H8Cl2O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Ciprofibrate EP Impurity B (C9H8Cl2O) contains a hydroxyl group, an ether linkage, chlorine substitution, 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 203.07 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.
As a certified reference material (CRM), Ciprofibrate EP Impurity B 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 | C9H8Cl2O |
| Molecular Weight | 203.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
Related Ciprofibrate Standards
Recommended Standards
- Bupropion Impurity 13 (CAS 92821-92-6)
- N-(2,3-dichlorophenyl)acetimidamide (CAS 35372-39-5)
- Allyl 2,4-dichlorophenyl ether (CAS 5441-16-7)
- 85826-33-1 4,6-Dichloro-2-methyl-5-(prop-2-en-1-yl)pyrimidine DTXSID50517310 (CAS 85826-33-1)
- Paricalcitol Impurity 20 (CAS 342645-83-4)
- Ivabradine Impurity 15 (CAS CATO-C4X-111915)
- Atrasentan Impurity 68 (CAS 1058402-54-2)
- 2-(7-Bromo-4-oxoquinazolin-3(4h)-yl)acetic acid (CAS 1306604-73-8)
- Fmoc-3-amino-3-(2-chlorophenyl)-propionic acid (CAS 284492-14-4)
- 2,4'-Difluoro-3-isopropoxy-[1,1'-biphenyl]-4-carbaldehyde (CAS 1956335-19-5)
- 1,1,1-Trifluoro-3-methoxypropan-2-amine (CAS 1391235-86-1)
- Betaxolol EP Impurity C (CAS 63659-17-6)
- 3-Hexanamine Hydrochloride (CAS 76716-22-8)
- Endo-Gly4-Semaglutide (CAS CATO-C4X-222679)
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