Ciprofloxacin Impurity 29（HCl） CAS CATO-C4X-136229
| CAS No. | CATO-C4X-136229 |
| Molecular Formula | C21H26FN5O2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ciprofloxacin Impurity 29（HCl） is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Ciprofloxacin Impurity 29（HCl） (CAS CATO-C4X-136229, C21H26FN5O2HCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Ciprofloxacin Impurity 29（HCl） (C21H26FN5O2HCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 435.93 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Ciprofloxacin Impurity 29（HCl） 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 | C21H26FN5O2 HCl |
| Molecular Weight | 435.93 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 5 |
Related Ciprofloxacin Standards
- Ciprofloxacin EP Impurity C (CAS 103222-12-4)
- Ciprofloxacin Impurity 14 (CAS 103237-52-1)
- Ciprofloxacin-acyl-Beta-D-glucuronide (CAS 105029-31-0)
- Ciprofloxacin impurity 43 (CAS 105093-21-8)
- Ciprofloxacin EP Impurity E (CAS 105394-83-0)
- Ciprofloxacin EP Impurity E（HCl） (CAS 105394-83-0(Free Base))
- Ciprofloxacin Ethyl Ester (CAS 105404-65-7)
- Ciprofloxacin Impurity 15 (CAS 105589-00-2)
Recommended Standards
- Desloratadine Impurity 50 (CAS CATO-C4X-143050)
- Ceftazidime Impurity C07 (CAS 752152-44-6)
- N-Nitroso Paroxetine Impurity G (CAS CATO-C4X-103579)
- 8-cyanoimidazo[1,2-a]pyridine-3-carboxylic acid (CAS 1019022-41-3)
- Cefprozil Δ3 Isomer (CAS 1000980-59-5)
- Bis[3,4,6-trichloro-2-(pentyloxycarbonyl)phenyl] oxalate (CAS 30431-54-0)
- 6'-Bromo-2H-[1,2'-bipyridin]-2-one (CAS 959237-86-6)
- N-(4-((6-(2-methoxyethoxy)-1H-indol-5-yl)oxy)pyridin-2-yl)acetamide (CAS 1622205-61-1)
- N-Methyl-1-(1-methyl-1H-pyrazol-4-yl)methanamine (CAS 179873-43-9)
- D-[Ser]8-Semaglutide (CAS CATO-C4X-2226207)
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