Moxifloxacin impurity 128 CAS CATO-C4X-1074128
| CAS No. | CATO-C4X-1074128 |
| Molecular Formula | C7H12N4O2 |
| Molecular Weight | 184.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Moxifloxacin impurity 128 (C7H12N4O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies Moxifloxacin impurity 128 (CAS CATO-C4X-1074128), a pharmacopoeial impurity reference standard (molecular formula C7H12N4O2, MW 184.20 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C7H12N4O2 |
| Molecular Weight | 184.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Moxifloxacin Standards
- Moxifloxacin Impurity 96 (CAS CATO-C4X-107496)
- Moxifloxacin Impurity 99 (CAS CATO-C4X-107499)
- Moxifloxacin impurity 161 (CAS 55698-67-4)
- Moxifloxacin impurity 162 (CAS 90800-42-3)
- Moxifloxacin Impurity 51 (CAS 1571-30-8)
- Moxifloxacin Impurity N44 (CAS 116751-24-7)
- Moxifloxacin Impurity 91 (CAS 89-00-9)
- Moxifloxacin impurity 163 (CAS 148887-46-1)
Recommended Standards
- 712-74-3 1,2,4,5-Tetracyanobenzene 1,2,4,5-Benzenetetracarbonitrile 1,2,4,5-Benzenetetranitrile 1,2,4,5-Benzentetrakarbonitril [Czech] Pyromellitic acid tetranitrile Pyromellitic nitrile Pyromellitic tetranitrile Pyromellitonitrile (6CI) Pyromellitotetranitrile Tetracyanobenzene 1,2,4,5-Benzentetrakarbonitril (CAS 712-74-3)
- N2,N4-Di-Nitroso Moxifloxacin Impurity 154 (CAS CATO-C4X-1074154)
- 2-(1H-Pyrazol-1-yl)-1H-1,3-benzodiazole 6488-88-6 7398AE C10H8N4 (CAS 6488-88-6)
- N,N-Dimethyl-2-(3-nitro-1H-pyrazol-1-yl)ethanamine (CAS 2007909-06-8)
- Norepinephrine impurity 87 (CAS CATO-C4X-151487)
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- 4-Acetyl-3,5-dimethyl-1H-pyrrole-2-carbonitrile (CAS 467470-43-5)
- 2-Chloro-5-(difluoromethyl)-3-methoxypyridin-4-amine (CAS 1805336-31-5)
- (5-Methyl-3-(trifluoromethyl)pyridin-2-yl)methanol (CAS 1360997-11-0)
- 5-Hydroxy-4-methyl-1,5-dihydro-2H-pyrrol-2-one (CAS 79641-88-6)
- 3-(Aziridin-1-yl)-3-(furan-2-yl)-1-phenylpropan-1-one (CAS 21805-70-9)
- Cyclopeptide-5 (CAS 197172-76-2)
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