Moxifloxacin impurity 163 CAS 148887-46-1
| CAS No. | 148887-46-1 |
| Molecular Formula | C11H9NO3 |
| Molecular Weight | 203.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Moxifloxacin impurity 163 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 203.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Moxifloxacin impurity 163 (CAS 148887-46-1), a pharmacopoeial impurity reference standard (molecular formula C11H9NO3, MW 203.19 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.
As a certified reference material (CRM), Moxifloxacin impurity 163 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 | C11H9NO3 |
| Molecular Weight | 203.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 1 |
Related Moxifloxacin Standards
- Moxifloxacin impurity 164 (CAS 1668584-26-6)
- Moxifloxacin impurity 165 (CAS 457948-35-5)
- Moxifloxacin Impurity 66 (CAS 38233-47-5)
- Moxifloxacin Impurity 45 (CAS 112811-65-1)
- Moxifloxacin Impurity N45 (CAS 1042641-60-0)
- Moxifloxacin Impurity N44 (CAS 116751-24-7)
- Moxifloxacin Impurity 176 (CAS 2102950-42-3)
- Moxifloxacin Impurity 35 (CAS 151213-39-7)
Recommended Standards
- Mosapride Impurity 18 (CAS 5455-98-1)
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- Rivaroxaban Impurity 7(R-isomer) (CAS 181140-34-1)
- Afatinib Impurity 37 (CAS 372-19-0)
- Erlotinib Impurity 110 (CAS 2204518-92-1)
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- 4,4-Dimethyl-3-oxo-2-(pyridin-2-yl)pentanenitrile (CAS 1485664-04-7)
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- Phenyl Mercury Hydroxide (CAS 100-57-2)
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- 3-Fluoro-2,6-dimethoxybenzaldehyde (CAS 1286216-61-2)
- 1-(Benzyloxy)-2-fluoro-3-iodo-5-(trifluoromethyl)benzene (CAS 2586125-95-1)
- Semaglutide Impurity 130 (CAS 1188328-40-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com