Exatecan Impurity 7 Mesylate CAS 2938875-54-6
| CAS No. | 2938875-54-6 |
| Molecular Formula | C24H22FN3O4 |
| Molecular Weight | N/A |
| 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, Exatecan Impurity 7 Mesylate (CAS 2938875-54-6, C24H22FN3O4CH4O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution, Exatecan Impurity 7 Mesylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 531.55 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Exatecan Impurity 7 Mesylate 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 | C24H22FN3O4 CH4O3S |
| Molecular Weight | 531.55 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Exatecan Standards
- Exatecan Impurity 1 (CAS 110351-91-2)
- Exatecan mesylate (CAS 169869-90-3)
- Exatecan (CAS 171335-80-1)
- Exatecan-d5 mesylate (CAS 2819276-88-3)
- Exatecan Impurity 6 (CAS 2922852-48-8)
- Exatecan Impurity 3 Methanesulfonate (CAS 2938875-39-7；2489613-15-0（free base）)
- Exatecan Impurity 2 Methanesulfonate (CAS CATO-C4X-23822)
Recommended Standards
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- Methyl 4-(pyrrolidin-1-yl)-4-thioxobutanoate (CAS 77902-88-6)
- 2-Amino-2-(1,1-dioxidotetrahydrothiophen-3-yl)acetamide (CAS 1497333-70-6)
- Semaglutide Sodium Salt (CAS CATO-C4X-222620)
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