Levofloxacin Impurity 97 CAS CATO-C4X-137197
| CAS No. | CATO-C4X-137197 |
| Molecular Formula | C18H20FN3O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Levofloxacin Impurity 97 (C18H20FN3O4HCl) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 397.83 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Levofloxacin Impurity 97 (CAS CATO-C4X-137197) is a certified pharmaceutical impurity reference standard with the molecular formula C18H20FN3O4HCl and a molecular weight of 397.83 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.
As a certified reference material (CRM), Levofloxacin Impurity 97 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H20FN3O4 HCl |
| Molecular Weight | 397.83 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 |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Levofloxacin Standards
- Levofloxacin (CAS 100986-85-4)
- Levofloxacin R-Isomer（Levofloxacin EP Impurity A） (CAS 100986-86-5)
- Levofloxacin EP Impurity F (CAS 100986-89-8)
- Levofloxacin Impurity 35 (CAS 1012310-27-8)
- Levofloxacin Impurity 51 (CAS 1026952-91-9)
- Levofloxacin Impurity N27 (CAS 1036016-10-0)
- Levofloxacin Impurity 100 (CAS 104600-15-9)
- Levofloxacin Impurity 101 (CAS 105804-40-8)
Recommended Standards
- Mivacurium chloride Impurity 58 (CAS CATO-C4X-137558)
- Tegoprazan Impurity 115 (CAS CATO-C4X-2297115)
- Vitamin K1 Impurity 54 (CAS CATO-C4X-220754)
- rel-Benzyl ((1R,2R)-2-(hydroxymethyl)cyclohexyl)carbamate (CAS 213672-68-5)
- N-(2-Chlorophenyl)-5-methyl-1-phenyl-1H-1,2,4-triazole-3-carboxamide (CAS 1000572-01-9)
- 2-Chloro-N-(2,3-dimethoxyphenyl)quinazolin-4-amine (CAS 827030-60-4)
- Beta-Caryophyllene Epoxide (CAS 1139-30-6)
- 2-(3,4-Dimethylphenyl)-8-methylquinoline-4-carbonyl chloride (CAS 1160254-17-0)
- 5-Cyclopropoxy-2-methoxybenzonitrile (CAS 1243407-41-1)
- Gastric Inhibitory Polypeptide (3-42) (human) trifluoroacetate salt (CAS 1802086-25-4)
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