Pazopanib Impurity 4 CAS 1797832-43-9
| CAS No. | 1797832-43-9 |
| Molecular Formula | C20H21N7O2S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Pazopanib Impurity 4.
Pazopanib Impurity 4 (CAS 1797832-43-9) is a certified pharmaceutical impurity reference standard with the molecular formula C20H21N7O2SHCl and a molecular weight of 459.95 g/mol.
Based on its molecular formula C20H21N7O2SHCl, Pazopanib Impurity 4 contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 459.95 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Pazopanib Impurity 4 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 | C20H21N7O2S HCl |
| Molecular Weight | 459.95 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 1 |
Related Pazopanib Standards
- Pazopanib Impurity 28 (CAS 1072836-76-0)
- Pazopanib Impurity 18 (CAS 121-03-9)
- Pazopanib-d6 (CAS 1219592-01-4)
- Pazopanib Impurity 5 (CAS 1226499-97-3)
- Pazopanib Impurity 6 (CAS 1226499-98-4)
- Pazopanib Impurity 50 (CAS 1226500-00-0)
- Pazopanib Impurity 42 (CAS 1226500-01-1)
- Pazopanib Impurity 37 (CAS 1226500-02-2)
Recommended Standards
- Vardenafil Impurity 39 (CAS 2580939-41-7)
- Berberine Impurity 3 (CAS 2435-73-6)
- Econazole Impurity 12 (CAS 45892-47-5)
- Pergolide-d7 HCl (CAS 66104-22-1)
- (3-(3-Ethoxy-3-oxopropyl)phenyl)boronic acid (CAS 913835-82-2)
- Tert-butyl (S)-methyl(piperidin-3-ylmethyl)carbamate (CAS 1124199-22-9)
- (R)-Demethylcitalopram (CAS 144010-85-5)
- 3-Fluoro-1H-pyrrolo[2,3-b]pyridin-5-amine (CAS 1352394-81-0)
- Propane-1,2,3-triyl (6Z,6'Z,6''Z)-tris(octadec-6-enoate) (CAS 3296-43-3)
- Experimental Allergic Encephalitogenic Peptide (CAS 29705-92-8)
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