Levofloxacin Impurity 51 CAS 1026952-91-9
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1026952-91-9 |
| Molecular Formula | C13H11F2NO4 |
| Molecular Weight | 283.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Levofloxacin Impurity 51 (CAS 1026952-91-9) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C13H11F2NO4. Molecular weight: 283.23 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C13H11F2NO4 |
| Molecular Weight | 283.23 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, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1988 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Levofloxacin Standards
- Levofloxacin Impurity 12 (CAS 1798887-79-2)
- Levofloxacin EP Impurity F (CAS 100986-89-8)
- Levofloxacin Impurity 16 (CAS 82419-35-0)
- Levofloxacin Impurity 20 (CAS 2206360-62-3)
- Levofloxacin impurity 72 (CAS CATO-C4X-137172)
- Levofloxacin impurity 91 (CAS 151250-74-7)
- Levofloxacin Impurity 18 (CAS 431058-46-7)
- Levofloxacin impurity 90 (CAS CATO-C4X-137190)
Recommended Standards
- Celecoxib Impurity 16 (CAS 915280-81-8)
- 7-(Benzo[d][1,3]dioxol-5-yl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (CAS 1017068-75-5)
- Methyl 4-oxo-4-((5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl)amino)butanoate (CAS 329695-18-3)
- Brimonidine EP Impurity A (CAS 91147-43-2)
- Difelikefalin Impurity 80 (CAS CATO-C4X-304180)
- 2',5'-Dichloro-[1,1'-biphenyl]-2,5-dione (CAS 79756-69-7)
- 3-aminopyrazolo[1,5-a]pyrimidin-7-ol (CAS 201599-18-0)
- (S)-5-benzyl-3-bromo-6-methyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazine (CAS 2306252-53-7)
- 3-Ethoxy-2-methyl-6-nitropyridine (CAS 73101-78-7)
- Tirzepatide Impurity 44 (CAS CATO-C4X-324044)
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 13829788188 / jacky.chen@cato-chem.com