Camptothecin Impurity 15 CAS CATO-C4X-157115
| CAS No. | CATO-C4X-157115 |
| Molecular Formula | C23H22N2O5 |
| Molecular Weight | 406.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Camptothecin Impurity 15 (CAS CATO-C4X-157115), a pharmacopoeial impurity reference standard (molecular formula C23H22N2O5, MW 406.43 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C23H22N2O5, Camptothecin Impurity 15 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 406.43 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).
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 manufactures Camptothecin Impurity 15 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 | C23H22N2O5 |
| Molecular Weight | 406.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Camptothecin Standards
- Camptothecin Impurity 8 (CAS 86639-53-4)
- Camptothecin impurity 18 (CAS 19685-11-1)
- Camptothecin Impurity 11 (CAS 2569708-76-3)
- Camptothecin Impurity 13 (CAS 91421-42-0)
- Camptothecin impurity 19 (CAS CATO-C4X-157119)
- Camptothecin Impurity 12 (CAS 19685-10-0)
- 11-Ethyl Camptothecin (CAS 185807-29-8)
- Camptothecin Impurity 10 (CAS 68426-53-9)
Recommended Standards
- Galanthamine Impurity 36 (CAS CATO-C4X-143536)
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- Quinolin-8-yl 2-(4-methoxyphenyl)quinoline-4-carboxylate (CAS 332381-08-5)
- Venetoclax Impurity 31 (CAS CATO-C4X-249531)
- Levalbuterol Impurity 2 (CAS CATO-C4X-22592)
- Coumarin 102 Impurity 5 (CAS CATO-C4X-24335)
- 3,4-dihydro-2H-1,4-benzoxazine-6-carboxylic acid (CAS 918789-44-3)
- Ethyl 2-[benzyl(methyl)amino]propanoate (CAS 102281-35-6)
- 4-Butoxy-2-nitroaniline (CAS 3987-86-8)
- 1-Bromo-4-chloro-2-methyl-3-nitrobenzene (CAS 1804383-61-6)
- Tamsulosin Impurity 47 (CAS CATO-C4X-118747)
- Methyl 3,6-difluoro-2-nitrobenzoate (CAS 1803730-28-0)
- [Ser]8-Acetylated Semaglutide (CAS CATO-C4X-2226218)
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