Sitafloxacin impurity 75 CAS CATO-C4X-115575
| CAS No. | CATO-C4X-115575 |
| Molecular Formula | C15H12ClF4NO3 |
| Molecular Weight | 365.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 process- or degradation-related impurity, Sitafloxacin impurity 75 (CAS CATO-C4X-115575, C15H12ClF4NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, Sitafloxacin impurity 75 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 365.71 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Sitafloxacin impurity 75 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 | C15H12ClF4NO3 |
| Molecular Weight | 365.71 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Sitafloxacin Standards
- Sitafloxacin impurity 89 (CAS CATO-C4X-115589)
- Sitafloxacin Impurity 27 (CAS CATO-C4X-115527)
- Sitafloxacin impurity 77 (CAS 2412444-06-3)
- 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
- Ethyl 4-(2-chloro-6-fluorophenyl)-1,2,3,4-tetrahydro-6-(tfm)pyrid-2-one-5-carboxylate (CAS 338959-99-2)
- 4-fluorophenylboronic anhydride (CAS 448-59-9)
- (2E,5Z)-5-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methylidene}-3-methyl-2-(nitromethylidene)-1,3-thiazolidin-4-one (CAS 551921-81-4)
- 5-({[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}methyl)-N-[(1E)-(hydroxyamino)methylidene]-4,5-dihydro-1,2-oxazole-3-carboxamide (CAS 338410-26-7)
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- 7-Amino-5-bromo-2-methylpyrido[4,3-d]pyrimidin-4(3H)-one (CAS 915190-04-4)
- Chloramphenicol closed-loop dimer1 (CAS CATO-C4X-232135)
- 1-Benzyl-5-butyl-6-chloro-3-phenylpyridazin-4(1H)-one (CAS 919198-01-9)
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- Pcb No. 100 (CAS 39485-83-1)
- 1-(6-Amino-3,4-dihydroquinolin-1(2H)-yl)ethanone (CAS 27392-71-8)
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