(R)-Levofloxacin N-Oxide CAS 117678-37-2
| CAS No. | 117678-37-2 |
| Molecular Formula | C18H20FN3O5 |
| Molecular Weight | 377.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 377.37 g/mol gives (R)-Levofloxacin N-Oxide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (R)-Levofloxacin N-Oxide (CAS 117678-37-2), a certified reference material (molecular formula C18H20FN3O5, MW 377.37 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, (R)-Levofloxacin N-Oxide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 377.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H20FN3O5 |
| Molecular Weight | 377.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >90% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related R Standards
- Levofloxacin EP Impurity C(Levofloxacin N-Oxide) (CAS 117678-38-3)
- Levofloxacin Impurity 92 (CAS CATO-C4X-137192)
- Levofloxacin Impurity 52 (CAS 1152314-62-9)
- Levofloxacin Impurity 88 (CAS CATO-C4X-137188)
- Levofloxacin Impurity 34 (CAS 108224-82-4)
- Levofloxacin Impurity 40 (CAS 106939-30-4)
- Levofloxacin Methyl Ester (CAS 862690-19-5)
- Levofloxacin impurity 78 (CAS 107359-24-0)
Recommended Standards
- N2-Nitroso Relebactam Impurity 83 (CAS CATO-C4X-214483)
- N-(4-{2-[3-(Trifluoromethyl)anilino]-1,3-thiazol-4-yl}phenyl)acetamide (CAS 1023875-75-3)
- N-Nitroso Relebactam Impurity 51 (CAS CATO-C4X-214451)
- (R)-3-Methyl-3-(methylsulfonyl)-1-(1H-1,2,4-triazol-1-yl)-2-(4-(trifluoromethyl)phenyl)butan-2-ol (CAS 136067-87-3)
- Chroman-3-ylmethanamine (CAS 10185-46-3)
- 1,2-Bis(4-ethynylphenyl)diazene (CAS 92792-15-9)
- Ethyl 2-amino-5-cyano-4-methylthiophene-3-carboxylate (CAS 43028-74-6)
- 4-Chloro-2-hexyl-5-((4-methylbenzyl)oxy)pyridazin-3(2H)-one (CAS 88094-42-2)
- 3-(5-Amino-1-pyrazolyl)-1-propanol (CAS 131654-77-8)
- Daptomycin (CAS 103060-53-3)
- Methyl n-Octyl Sulfide (CAS 3698-95-1)
- rel-tert-Butyl (3R,4R)-3-amino-4-hydroxypiperidine-1-carboxylate (CAS 1268511-99-4)
- Clotrimazole Impurity 1 (CAS 968-39-8)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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