Sitafloxacin Impurity 27 CAS CATO-C4X-115527
| CAS No. | CATO-C4X-115527 |
| Molecular Formula | C18H18ClF2N3O |
| Molecular Weight | 365.80 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Sitafloxacin Impurity 27 (CAS CATO-C4X-115527, C18H18ClF2N3O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C18H18ClF2N3O, Sitafloxacin Impurity 27 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 365.80 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Sitafloxacin Impurity 27 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 | C18H18ClF2N3O |
| Molecular Weight | 365.80 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 |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Sitafloxacin Standards
- Sitafloxacin impurity 77 (CAS 2412444-06-3)
- Sitafloxacin impurity 75 (CAS CATO-C4X-115575)
- Sitafloxacin impurity 89 (CAS CATO-C4X-115589)
- Sitafloxacin Dechloro Impurity (CAS CATO-C4X-115524)
- Sitafloxacin Impurity 29 (CAS CATO-C4X-115529)
- Sitafloxacin Impurity N13 (CAS 127199-25-1)
- Sitafloxacin Impurity 1 (CAS CATO-C4X-11551)
- Sitafloxacin Impurity 69 (CAS CATO-C4X-115569)
Recommended Standards
- N-(3-chloro-5-fluorophenyl)-2-(4-(4-fluorophenyl)piperazin-1-yl)acetamide (CAS 882082-07-7)
- N-(3-chloro-4-fluorophenyl)-2-(4-(4-fluorophenyl)piperazin-1-yl)acetamide (CAS 329079-97-2)
- Methyl (S)-4-(2-Chloro-4-fluorophenyl)-6-methyl-2-(2-thiazolyl)-1,4-dihydropyrimidine-5-carboxylate (CAS 1236208-59-5)
- N-(3-chloro-4-fluorophenyl)-2-(4-(2-fluorophenyl)piperazin-1-yl)acetamide (CAS 329080-46-8)
- Vonoprazan Impurity 48 (CAS CATO-C4X-1020248)
- Ifosfamide EP Impurity A (CAS 22608-58-8)
- Mirogabalin Impurity 28 (CAS CATO-C4X-292428)
- Ethyl 3-(5-nitrofuran-2-yl)acrylate (CAS 93303-56-1)
- (6R,7R,8R,9R)-8-Hydroxy-7-methoxy-7,8,9,10-tetrahydro-6,9-epoxypyrimido[2,1-b][1,3]oxazocin-2(6H)-one (CAS 175471-64-4)
- 1-Chloro-5-methoxy-2-methyl-3-nitrobenzene (CAS 102735-89-7)
- Estradiol Valerate Impurity 20 (CAS CATO-C4X-284220)
- 2-{[(1-phenyl-1h-1,2,3,4-tetrazol-5-yl)methyl]sulfanyl}benzoic acid (CAS 872319-73-8)
- 4-Cyclohexyl-5-propyl-4h-1,2,4-triazole-3-thiol (CAS 667444-98-6)
- Liraglutide Impurity 14 TFA Salt (CAS CATO-C4X-199214)
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