Levofloxacin impurity 65 CAS CATO-C4X-137165
| CAS No. | CATO-C4X-137165 |
| Molecular Formula | C23H31N5O4 |
| Molecular Weight | 441.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Levofloxacin impurity 65 (C23H31N5O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Levofloxacin impurity 65 (CAS CATO-C4X-137165, C23H31N5O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
CATO manufactures Levofloxacin impurity 65 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 | C23H31N5O4 |
| Molecular Weight | 441.52 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Levofloxacin Standards
- Levofloxacin Impurity 32 (CAS 1329833-82-0)
- Levofloxacin Impurity 58 (CAS CATO-C4X-137158)
- Levofloxacin Impurity 19 (CAS 2206135-16-0)
- 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
- Lacidipine BP Impurity A (CAS 103890-81-9)
- Esmolol Impurity 63 (CAS CATO-C4X-189163)
- Cefditoren Impurity 53 (CAS CATO-C4X-135853)
- Tegoprazan Impurity 144 (CAS CATO-C4X-2297144)
- Atomoxetine Hydrochloride EP Impurity B (CAS 82857-39-4)
- Parecoxib Impurity 57 (CAS CATO-C4X-159157)
- Suplatast Tosilate impurity 83 (CAS CATO-C4X-32683)
- 1-(Methylsulfonyl)-2-(thiophen-2-yl)pyrrolidine (CAS 950327-45-4)
- 1-(2-Naphthalenyl)-2,3-butadien-1-one (CAS 875796-33-1)
- 2-(2-Nitrophenyl)-1-phenylethanone (CAS 4212-33-3)
- 1-(4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)phenyl)cyclopropane-1-carboxylic acid (CAS 1566216-08-7)
- 1-(2,4-Dimethyl-5-(piperidin-1-yl)-4,5-dihydrofuran-3-yl)ethanone (CAS 88557-09-9)
- 2-Cyano-N-(2,4-dimethoxyphenyl)acetamide (CAS 133550-46-6)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
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