Ciprofloxacin Impurity 26 CAS 107884-23-1
| CAS No. | 107884-23-1 |
| Molecular Formula | C18H20FN3O3 |
| Molecular Weight | 345.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Ciprofloxacin Impurity 26 (CAS 107884-23-1), a pharmacopoeial impurity reference standard (molecular formula C18H20FN3O3, MW 345.37 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C18H20FN3O3, Ciprofloxacin Impurity 26 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 345.37 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.
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.
Physical & Chemical Properties
| Molecular Formula | C18H20FN3O3 |
| Molecular Weight | 345.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Ciprofloxacin Standards
- Ciprofloxacin Impurity 14 (CAS 103237-52-1)
- Ciprofloxacin Impurity 15 (CAS 86483-53-6)
- Ciprofloxacin Impurity 41 (CAS CATO-C4X-136241)
- Ciprofloxacin impurity 51 (CAS CATO-C4X-136251)
- Ciprofloxacin Impurity 28 (CAS CATO-C4X-136228)
- Ciprofloxacin EP Impurity D (CAS 133210-96-5)
- Ciprofloxacin impurity 45 (CAS 93106-58-2)
- Ciprofloxacin-d8 (CAS 1130050-35-9)
Recommended Standards
- Tert-butyl (2-((3-nitrophenyl)sulfonamido)ethyl)carbamate (CAS 902775-90-0)
- Piroxicam Impurity 16 (CAS 1797884-12-8)
- O-Methyl Piroxicam (CAS 76780-03-5)
- Piroxicam Impurity 25 (CAS CATO-C4X-173325)
- Fluticasone Impurity 36 (CAS 192191-51-8)
- Nemonoxacin Impurity 96 (CAS CATO-C4X-312896)
- Metoprolol EP Impurity N Oxalate (CAS 73313-34-5)
- 1-Hydroxy-7-nitroanthracene-9,10-dione (CAS 52808-13-6)
- 1-(4-cyanophenyl)cyclopropane-1-carboxylic acid (CAS 1094478-22-4)
- 2-bromo-4-fluoro-1-methyl-3-nitrobenzene (CAS 1803588-45-5)
- 2-(1-Naphthylmethylene)-1H-indene-1,3(2H)-dione (CAS 25116-35-2)
- 2-Chloro-7-hydroxyquinoline-3-carbaldehyde (CAS 519018-42-9)
- 20:4 (Cis) PC (CAS 17688-29-8)
- Peptide Impurity 34 (CAS 21282-09-7)
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