Levofloxacin Impurity 9 CAS 1797099-76-3
| CAS No. | 1797099-76-3 |
| Molecular Formula | C15H16FN3O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Levofloxacin Impurity 9 (CAS 1797099-76-3), a pharmacopoeial impurity reference standard (molecular formula C15H16FN3O4HCl, MW 357.77 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Levofloxacin Impurity 9 (C15H16FN3O4HCl) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 357.77 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 certified reference material (CRM), Levofloxacin Impurity 9 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C15H16FN3O4 HCl |
| Molecular Weight | 357.77 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Levofloxacin Standards
- Levofloxacin (CAS 100986-85-4)
- Levofloxacin R-Isomer（Levofloxacin EP Impurity A） (CAS 100986-86-5)
- Levofloxacin EP Impurity F (CAS 100986-89-8)
- Levofloxacin Impurity 35 (CAS 1012310-27-8)
- Levofloxacin Impurity 51 (CAS 1026952-91-9)
- Levofloxacin Impurity N27 (CAS 1036016-10-0)
- Levofloxacin Impurity 100 (CAS 104600-15-9)
- Levofloxacin Impurity 101 (CAS 105804-40-8)
Recommended Standards
- Cinacalcet impurity C1403 (CAS 851984-49-1)
- Delafloxacin Impurity 16 (CAS CATO-C4X-263716)
- Mivacurium chloride Impurity 49 (CAS CATO-C4X-137549)
- (3R,4R)-tert-Butyl 3-methoxy-4-((methylsulfonyl)oxy)pyrrolidine-1-carboxylate (CAS 2810050-65-6)
- 2-Amino-4-(dimethylamino)benzonitrile (CAS 28340-63-8)
- 2-((4-Fluorophenyl)amino)isonicotinic acid (CAS 868734-50-3)
- 5-Fluoro-2-iodo-4-methylaniline (CAS 1126423-32-2)
- 1-(2,4-Dichlorophenyl)-2-(1H-imidazol-2-yl)ethan-1-one (CAS 252950-14-4)
- 2-Bromo-4,5-dihydro-6h-pyrrolo[3,4-d]thiazol-6-one (CAS 1211531-11-1)
- Semaglutide impurity 98 (CAS CATO-C4X-222698)
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