Moxifloxacin EP Impurity G CAS 268545-13-7
| CAS No. | 268545-13-7 |
| Molecular Formula | C21H24FN3O4 |
| Molecular Weight | 401.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Moxifloxacin EP Impurity G 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.
As a process- or degradation-related impurity, Moxifloxacin EP Impurity G (CAS 268545-13-7, C21H24FN3O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C21H24FN3O4, Moxifloxacin EP Impurity G contains a flavonoid 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 401.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C21H24FN3O4 |
| Molecular Weight | 401.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Moxifloxacin Standards
- MOXIFLOXACIN (CAS 1346747-14-5)
- Moxifloxacin (CAS 354812-41-2)
- Moxifloxacin Impurity 40(S,R) (CAS 855661-74-4)
- Moxifloxacin Impurity 41(R,S) (CAS 855661-71-1)
- Moxifloxacin EP Impurity D (CAS 1029364-77-9)
- Moxifloxacin (CAS 151096-09-2)
- Moxifloxacin impurity 79 (CAS 2445515-66-0)
- Moxifloxacin Impurity 83 (CAS 1829588-19-3)
Recommended Standards
- (1-((3-Cyclopropyl-1,2,4-oxadiazol-5-yl)methyl)-4,4-dioxido-1H-benzo[e][1,3,4]thiadiazin-3-yl)(pyrrolidin-1-yl)methanone (CAS 1251698-42-6)
- Voreloxin (CAS 175414-77-4)
- Paroxetine Impurity 69 (CAS CATO-C4X-103569)
- 5-(Methylthio)-3,7-dioxo-9-phenyl-8-oxa-2,4,6-triazanon-4-enoicAcidPhenylmethylEster (CAS 176106-49-3)
- Ethambutol EP Impurity B (CAS 10054-06-5)
- Aztreonam Impurity 116 (CAS CATO-C4X-1522116)
- Loxoprofen Impurity 159 (CAS CATO-C4X-1488159)
- N-methyl-3-(6-methyl-2-(piperidin-3-yl)pyrimidin-4-yl)propanamide dihydrochloride (CAS 1361113-31-6)
- 1-(4-Amino-1,2,5-oxadiazol-3-yl)-5-methyl-1H-1,2,3-triazole-4-carboxamide (CAS 312267-71-3)
- 2-amino-6-methoxybenzene-1-sulfonamide (CAS 393089-40-2)
- 2-(2-(Cyclopentyloxy)ethoxy)ethane-1-sulfonyl chloride (CAS 1343694-31-4)
- rac Rasagiline-13C3 Mesylate (CAS 1216757-55-9)
- 2-Chloro-4-nitrophenyl-β-D-cellotetraoside (CAS 189094-93-7)
- Semaglutide impurity 27 (CAS CATO-C4X-222627)
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