Ozenoxacin Impurity 78 CAS CATO-C4X-279678
| CAS No. | CATO-C4X-279678 |
| Molecular Formula | C21H23N3O6 |
| Molecular Weight | 413.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ozenoxacin Impurity 78 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.
CATO supplies Ozenoxacin Impurity 78 (CAS CATO-C4X-279678), a pharmacopoeial impurity reference standard (molecular formula C21H23N3O6, MW 413.42 g/mol) used for the identification and quantification of trace impurities in APIs.
Ozenoxacin Impurity 78 (C21H23N3O6) contains a flavonoid core, 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).
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.
Physical & Chemical Properties
| Molecular Formula | C21H23N3O6 |
| Molecular Weight | 413.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Ozenoxacin Standards
- Ozenoxacin Impurity 77 (CAS CATO-C4X-279677)
- Ozenoxacin Impurity 45 (CAS CATO-C4X-279645)
- Ozenoxacin Impurity 58 (CAS CATO-C4X-279658)
- Ozenoxacin Impurity 79 (CAS CATO-C4X-279679)
- Ozenoxacin Impurity 81 (CAS CATO-C4X-279681)
- Ozenoxacin Impurity 37 (CAS CATO-C4X-279637)
- Ozenoxacin Impurity 34 (CAS 245765-55-3)
- Ozenoxacin Impurity 80 (CAS CATO-C4X-279680)
Recommended Standards
- Noscapine impurity 4 (CAS 54383-36-7)
- Orforglipron Impurity 50 (CAS CATO-C4X-323450)
- Salbutamol Impurity 195 (CAS CATO-C4X-1176195)
- Narcotine (CAS 128-62-1)
- Atazanavir Impurity 12 (CAS 162536-40-5)
- Ruxolitinib Impurity 233 (CAS CATO-C4X-2058233)
- Bilastine impurity 111 (CAS CATO-C4X-2253111)
- Benzenesulfonic Acid Impurity 11 (CAS 24698-43-9)
- 7-Amino-3-isopropyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 860672-30-6)
- 1-(4-Bromo-2-fluorophenyl)-3-(o-tolyl)propan-1-one (CAS 898789-82-7)
- Diethyl 2-(naphthalen-2-ylamino)malonate (CAS 6248-33-5)
- 6-Chloro-2-(3-hydroxyphenyl)quinoline-4-carboxylic acid (CAS 724749-33-1)
- tert-Butyl 4-iodo-1-methyl-7-oxo-6-azabicyclo[3.2.1]octane-6-carboxylate (CAS 1259366-15-8)
- Semaglutide impurity 255 (CAS CATO-C4X-2226255)
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