Levofloxacin Impurity 19 CAS 2206135-16-0
| CAS No. | 2206135-16-0 |
| Molecular Formula | C23H30FN5O3 |
| Molecular Weight | 443.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a process- or degradation-related impurity, Levofloxacin Impurity 19 (CAS 2206135-16-0, C23H30FN5O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Levofloxacin Impurity 19 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 443.51 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Levofloxacin Impurity 19 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 | C23H30FN5O3 |
| Molecular Weight | 443.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 5 |
Related Levofloxacin Standards
- Levofloxacin Impurity 32 (CAS 1329833-82-0)
- Levofloxacin Impurity 58 (CAS CATO-C4X-137158)
- Levofloxacin impurity 65 (CAS CATO-C4X-137165)
- Levofloxacin Impurity 42 (CAS 1330277-19-4)
- Levofloxacin Impurity 34 (CAS CATO-C4X-137134)
- Levofloxacin Impurity 36 (CAS 2130840-88-7)
- Levofloxacin Impurity 41 (CAS CATO-C4X-137141)
- Levofloxacin Impurity 99 (CAS 902172-11-6)
Recommended Standards
- Meropenem Impurity 12 (CAS CATO-C4X-130912)
- Fmoc-β-(3-benzothienyl)-Ala-OH (CAS 177966-60-8)
- Cefotaxime Impurity 65 (CAS CATO-C4X-120165)
- 3,4,5-Trimethoxy-N-(1-(3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)cyclohexyl)benzamide (CAS 1396635-04-3)
- Sertraline Impurity 77 (CAS CATO-C4X-134477)
- Ganciclovir EP Impurity A (CAS 1797982-93-4)
- Apalutamide Impurity 22 (CAS CATO-C4X-274922)
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- 2,2-Difluoro-N-((1-methyl-1H-imidazol-5-yl)methyl)ethan-1-amine (CAS 1551863-96-7)
- 2-(8-Cyclopropyl-(oxo)pyrazolo[1,5-d][1,2,4]triazin-1-yl)acetic acid (CAS 1713639-45-2)
- Des-Ser34-Gly33Tirzepatide (CAS CATO-CPTD788941)
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