Levofloxacin Impurity 101 CAS 105804-40-8
| CAS No. | 105804-40-8 |
| Molecular Formula | C11H9F3O3 |
| Molecular Weight | 246.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H9F3O3, Levofloxacin Impurity 101 contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 246.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Levofloxacin Impurity 101 (CAS 105804-40-8) is a certified pharmaceutical impurity reference standard with the molecular formula C11H9F3O3 and a molecular weight of 246.18 g/mol.
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 101 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 | C11H9F3O3 |
| Molecular Weight | 246.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
Related Levofloxacin Standards
- Levofloxacin Impurity 102 (CAS 1260774-13-7)
- Levofloxacin Impurity 11 (CAS 1798902-76-7)
- Levofloxacin impurity 73 (CAS CATO-C4X-137173)
- Levofloxacin Impurity 43 (CAS 117620-84-5)
- Levofloxacin impurity 71 (CAS CATO-C4X-137171)
- Levofloxacin impurity 75 (CAS CATO-C4X-137175)
- Levofloxacin impurity 91 (CAS 151250-74-7)
- Levofloxacin Impurity 20 (CAS 2206360-62-3)
Recommended Standards
- Tirofiban Impurity 126 (CAS CATO-C4X-1254126)
- Sitafloxacin Impurity 16 (CAS 98349-24-7)
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- Flumetasone Impurity 9 (CAS 2541-37-9)
- Remimazolam Impurity 3 (CAS 76379-01-6)
- Temozolomide Impurity 18 (CAS 4919-04-4)
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- 1-BROMO-7-FLUORO-2-NAPHTHALDEHYDE (CAS 925442-76-8)
- Methyl 4-(2-oxopyrrolidin-1-yl)butanoate (CAS 6740-20-1)
- Tau Peptide (307-321) trifluoroacetate salt (CAS 330456-50-3)
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