Pazopanib Impurity 19 CAS 6973-09-7
| CAS No. | 6973-09-7 |
| Molecular Formula | C7H10N2O2S |
| Molecular Weight | 186.23 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.
CATO supplies Pazopanib Impurity 19 (CAS 6973-09-7), a pharmacopoeial impurity reference standard (molecular formula C7H10N2O2S, MW 186.23 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C7H10N2O2S, Pazopanib Impurity 19 contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 186.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H10N2O2S |
| Molecular Weight | 186.23 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Pazopanib Standards
- Pazopanib Impurity 25 (CAS 6274-28-8)
- Pazopanib Impurity 10 (CAS CATO-C4X-172510)
- Pazopanib Impurity 31 (CAS 35113-90-7)
- Pazopanib Impurity 2 (CAS 1354224-47-7)
- Pazopanib Impurity 22 (CAS 444731-73-1)
- Pazopanib Impurity 45(Mixture of Isomers) (CAS CATO-C4X-172545)
- Pazopanib Impurity 30 (CAS 1313372-75-6)
- Pazopanib Impurity 58 (CAS CATO-C4X-172558)
Recommended Standards
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- Olopatadine Impurity 17 HCl (CAS 1206456-44-1（free base）)
- Tiamulin EP Impurity S (CAS CATO-C4X-22104)
- 7-(tert-Butyl)-4-chloro-6-methyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 2088748-47-2)
- 2-(3,4-Dihydroisoquinolin-2(1H)-yl)-6-isopropylpyrimidine-4-carboxylic acid (CAS 1182002-05-6)
- cis-6-Benzyloctahydro-2H-pyrano[3,2-c]pyridine (CAS 1629784-84-4)
- 5-Chloro-2-(3-fluorophenyl)-1H-imidazole (CAS 944904-12-5)
- Potassium cyclopyropylmethyltrifluoroborate (CAS 1356481-57-6)
- Ac-Val-NHMe (CAS 19701-84-9)
- D-Ile12-Tirzepatide (CAS CATO-CPTD788921)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com