Levofloxacin Impurity 54 CAS CATO-C4X-137154
| CAS No. | CATO-C4X-137154 |
| Molecular Formula | C16H19FN4O5 |
| Molecular Weight | 366.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Levofloxacin Impurity 54.
CATO supplies Levofloxacin Impurity 54 (CAS CATO-C4X-137154), a pharmacopoeial impurity reference standard (molecular formula C16H19FN4O5, MW 366.34 g/mol) used for the identification and quantification of trace impurities in APIs.
Levofloxacin Impurity 54 (C16H19FN4O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C16H19FN4O5 |
| Molecular Weight | 366.34 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Levofloxacin Standards
- Levofloxacin-13C-D3 (CAS 1261398-33-7)
- Levofloxacin-d3 (CAS CATO-C4X-137150)
- Levofloxacin Impurity 62 (CAS CATO-C4X-137162)
- Levofloxacin Impurity 87 (CAS CATO-C4X-137187)
- Levofloxacin Impurity 93 (CAS CATO-C4X-137193)
- Levofloxacin Impurity 80 (CAS CATO-C4X-137180)
- Levofloxacin impurity 77 (CAS CATO-C4X-137177)
- Levofloxacin-d8 (CAS 1217716-71-6)
Recommended Standards
- N-Nitroso Linezolid Impurity 102 (CAS CATO-C4X-1073102)
- Imidacloprid EP Impurity C (CAS CATO-C4X-25412)
- Methyl 3-[2-(1,3-dioxoisoindol-2-yl)ethyl]-6-fluoro-1H-indole-4-carboxylate (CAS 1408282-25-6)
- Pentazocine Impurity 8 (CAS CATO-C4X-31648)
- Entecavir Impurity 43 (CAS CATO-C4X-107743)
- Cariprazine Impurity 12 (CAS 2327471-74-7)
- Valsartan Impurity 57 (CAS 1353844-77-5)
- 6-Fluoro-1,2,3,4-tetrahydroisoquinoline (CAS 224161-37-9)
- (11BS)-2,6-bis(3,5-di-tert-butylphenyl)-4-hydroxydinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide (CAS 1442645-05-7)
- (3-Methyl-1H-pyrrol-2-yl)methanol (CAS 151417-50-4)
- (1-(2-Chloropyrimidin-4-yl)pyrrolidin-2-yl)methanol (CAS 1249465-48-2)
- (S)-4-Bromo-N-(1-hydroxypropan-2-yl)-3-methylbenzamide (CAS 1568249-13-7)
- Piroxicam Impurity 26 (CAS 1942748-12-1)
- Semaglutide Impurity 82 (CAS CATO-C4X-222682)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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