Pazufloxacin Impurity 23 CAS CATO-C4X-233223
| CAS No. | CATO-C4X-233223 |
| Molecular Formula | C16H15FN2O5 |
| Molecular Weight | 334.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Pazufloxacin Impurity 23 (CAS CATO-C4X-233223) is a certified pharmaceutical impurity reference standard with the molecular formula C16H15FN2O5 and a molecular weight of 334.30 g/mol.
The molecular framework of Pazufloxacin Impurity 23 (C16H15FN2O5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures Pazufloxacin Impurity 23 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H15FN2O5 |
| Molecular Weight | 334.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Pazufloxacin Standards
- Pazufloxacin Impurity 17 (CAS 164851-44-9)
- Pazufloxacin Impurity 22 (CAS CATO-C4X-233222)
- Pazufloxacin Impurity 12 (CAS CATO-C4X-233212)
- Pazufloxacin Impurity 1 (CAS CATO-C4X-23321)
- Pazufloxacin Impurity 19 (CAS CATO-C4X-233219)
- Pazufloxacin Impurity 2 (CAS CATO-C4X-23322)
- Pazufloxacin Impurity 4 (CAS CATO-C4X-23324)
- Pazufloxacin Impurity 20 (CAS 165071-03-4)
Recommended Standards
- Norfloxacin Impurity 50 (CAS CATO-C4X-146850)
- 3-(((4-Isopropylphenyl)sulfonyl)methyl)-5-(trifluoromethyl)-1,2,4-oxadiazole (CAS 1020252-61-2)
- Ciprofloxacin Impurity 32 (CAS CATO-C4X-136232)
- 1-Cyclopropyl-3-[2-(methylsulfonyl)-4-(trifluoromethyl)phenyl]-1,3-propanedione (CAS 141112-23-4)
- Ruxolitinib Impurity 169 (CAS CATO-C4X-2058169)
- Perindopril Impurity N4 (CAS 145513-54-8)
- Tenofovir alafenamide Impurity 14 (CAS 1234081-04-9)
- N-[4-(3,3,4,4,5,5,6,6,7,7,8,8,8-TRidecafluorooctyl)benzyloxycarbonyloxy] succinimide (CAS 556050-48-7)
- Pranoprofen Impurity 72 (CAS CATO-C4X-181172)
- 1-Chloro-5-(ethylsulfonyl)-2-methylpentane (CAS 1490921-53-3)
- 1-Methoxyadamantane (CAS 6221-74-5)
- 2,3-Bis((2,6-dichlorophenyl)amino)-1,4-difluoroanthracene-9,10-dione (CAS 192770-42-6)
- 4-Nitro-5-phenyl-1H-indole (CAS 160096-30-0)
- Semaglutide impurity 78 (CAS CATO-C4X-222678)
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