Pazopanib Impurity 67 CAS CATO-C4X-172567
| CAS No. | CATO-C4X-172567 |
| Molecular Formula | C8H4Cl2N4O |
| Molecular Weight | 243.05 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.
Pazopanib Impurity 67 (CAS CATO-C4X-172567) is a certified pharmaceutical impurity reference standard with the molecular formula C8H4Cl2N4O and a molecular weight of 243.05 g/mol.
Based on its molecular formula C8H4Cl2N4O, Pazopanib Impurity 67 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 243.05 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures Pazopanib Impurity 67 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 | C8H4Cl2N4O |
| Molecular Weight | 243.05 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Pazopanib Standards
- Pazopanib Impurity 66 (CAS CATO-C4X-172566)
- Pazopanib Impurity 7 (CAS CATO-C4X-17257)
- Pazopanib Impurity 57 (CAS 444731-66-2)
- Pazopanib Impurity 32 (CAS 35122-82-8)
- Pazopanib Impurity 47 (CAS 1821666-71-0)
- Pazopanib Impurity 18 (CAS 121-03-9)
- Pazopanib Impurity 13 (CAS CATO-C4X-172513)
- Pazopanib Impurity 29 (CAS 412304-82-6)
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- Tert-butyl 2-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-2-cyanoacetate (CAS 1426290-06-3)
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- 4-(4-Chloro-2-nitrophenyl)butan-2-one (CAS 1247567-71-0)
- Tirzepatide Impurity 43 (CAS CATO-C4X-324043)
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