Pazufloxacin Impurity 14 CAS CATO-C4X-233214
| CAS No. | CATO-C4X-233214 |
| Molecular Formula | C16H15FN2O4 |
| Molecular Weight | 318.30 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 Pazufloxacin Impurity 14 (CAS CATO-C4X-233214), a pharmacopoeial impurity reference standard (molecular formula C16H15FN2O4, MW 318.30 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Pazufloxacin Impurity 14 (C16H15FN2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 318.30 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C16H15FN2O4 |
| Molecular Weight | 318.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >90% |
| 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 (CAS 127045-41-4)
- Pazufloxacin Impurity 20 (CAS 165071-03-4)
- Pazufloxacin Impurity 24 (CAS CATO-C4X-233224)
- Pazufloxacin Impurity 15 (CAS CATO-C4X-233215)
- Pazufloxacin Impurity 1 (CAS CATO-C4X-23321)
- Pazufloxacin Impurity 19 (CAS CATO-C4X-233219)
- Pazufloxacin Impurity 11 (CAS 165071-10-3)
- Pazufloxacin Impurity 12 (CAS CATO-C4X-233212)
Recommended Standards
- Methyl N-(2-methoxy-5-nitrophenyl)-N-(methylsulfonyl)glycinate (CAS 831216-37-6)
- Methyl 6-amino-5-cyano-4-(2-fluorophenyl)-2-(methoxymethyl)-4H-pyran-3-carboxylate (CAS 313379-54-3)
- Fluvoxamine Acid (CAS 88699-91-6)
- Methyl 4-{[(3-fluoroanilino)carbonyl]amino}-2-methoxybenzenecarboxylate (CAS 477889-70-6)
- Phoxim Impurity 2 (CAS 14816-35-4)
- Flucloxacillin impurity 11 (CAS CATO-C4X-164711)
- Daunorubicin impurity 13 (Mixture of Epimer) (CAS CATO-C4X-193713)
- (9H-Fluoren-9-yl)methyl 4-aminobenzylcarbamate (CAS 159790-81-5)
- 5-Fluoropyridine-3-carboximidamide (CAS 1201803-09-9)
- (5-methyl-4-phenyl-1,3-thiazol-2-yl)methanamine (CAS 244210-99-9)
- 4-((4-Methyl-1H-pyrazol-1-yl)methoxy)benzaldehyde (CAS 1006473-97-7)
- 2'-Chloro-biphenyl-3-sulfonyl chloride (CAS 933674-72-7)
- N-((2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methyl)propionamide (CAS 102908-66-7)
- Ephrin-A2-Selective YSA-Peptide (CAS 532441-10-4)
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