Topotecan Acetate CAS 123948-88-9
| CAS No. | 123948-88-9 |
| Molecular Formula | C23H23N3O5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 481.50 g/mol gives Topotecan Acetate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Topotecan Acetate (CAS 123948-88-9), a certified reference material (molecular formula C23H23N3O5C2H4O2, MW 481.50 g/mol) for analytical method development and quality control.
Based on its molecular formula C23H23N3O5C2H4O2, Topotecan Acetate 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 481.50 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Topotecan Acetate 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 | C23H23N3O5 C2H4O2 |
| Molecular Weight | 481.50 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 |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 3 |
Related Topotecan Standards
- Topotecan-d (CAS 1044746-98-6)
- Topotecan-d6 (CAS 1044904-10-0)
- Topotecan-d (CAS 1133355-98-2)
- Topotecan Hydrochloride (CAS 119413-54-6)
- Topotecan (CAS 123948-87-8)
- Topotecan Carboxylic Acid Sodium Salt (CAS 123949-08-6)
- Topotecan-d6 Carboxylic Acid Sodium Salt (CAS 1263470-27-4)
- Topotecan Impurity 4 (CAS 1398723-05-1)
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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