Ozenoxacin Impurity 63 CAS CATO-C4X-279663
| CAS No. | CATO-C4X-279663 |
| Molecular Formula | C18H17N3O3 |
| Molecular Weight | 323.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Ozenoxacin Impurity 63 (CAS CATO-C4X-279663), a pharmacopoeial impurity reference standard (molecular formula C18H17N3O3, MW 323.35 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Ozenoxacin Impurity 63 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 323.35 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).
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 | C18H17N3O3 |
| Molecular Weight | 323.35 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 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 25 (CAS CATO-C4X-279625)
- Ozenoxacin Impurity 28 (CAS CATO-C4X-279628)
- Ozenoxacin Impurity 2 (CAS CATO-C4X-27962)
- Ozenoxacin Impurity 44 (CAS CATO-C4X-279644)
- Ozenoxacin Impurity 72 (CAS CATO-C4X-279672)
- Ozenoxacin Impurity 31 (CAS CATO-C4X-279631)
- Ozenoxacin Impurity 65 (CAS CATO-C4X-279665)
- Ozenoxacin Impurity 33 (CAS CATO-C4X-279633)
Recommended Standards
- Finerenone Impurity 219 (CAS CATO-C4X-2880219)
- Fluoxetine Impurity 28 (CAS 56225-81-1)
- Belumosudil Impurity 41 (CAS CATO-C4X-298841)
- Dabigatran Impurity 136 (CAS 1015167-27-7)
- Finasteride Impurity 26 (CAS 133216-45-2)
- Fosaprepitant Impurity 874 (CAS 538-37-4)
- Selumetinib Impurity 12 (CAS CATO-C4X-305312)
- bicyclo[2.2.1]hept-2-en-2-ylboronic acid (CAS 871333-98-1)
- 4-Methyl-N,N-diphenylbenzenesulfonamide (CAS 4703-19-9)
- N-(sec-Butyl)-6-chloro-4-pyrimidinamine (CAS 1220035-13-1)
- Cypermethrin D5（Isomeric Mixture） (CAS 2140327-50-8)
- (S)-1-(2-chlorophenyl)but-3-en-1-amine (CAS 224453-37-6)
- Ethyl 5-(chloromethyl)-1-[4-(1H-pyrrol-1-yl)-1,2,5-oxadiazol-3-yl]-1H-1,2,3-triazole-4-carboxylate (CAS 681851-71-8)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com