Marbofloxacin EP Impurity D CAS 117380-92-4
| CAS No. | 117380-92-4 |
| Molecular Formula | C16H19FN4O4 |
| Molecular Weight | 350.34 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.
Marbofloxacin EP Impurity D (CAS 117380-92-4) is a certified pharmaceutical impurity reference standard with the molecular formula C16H19FN4O4 and a molecular weight of 350.34 g/mol.
Based on its molecular formula C16H19FN4O4, Marbofloxacin EP Impurity D contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 350.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Marbofloxacin EP Impurity D 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.
Physical & Chemical Properties
| Molecular Formula | C16H19FN4O4 |
| Molecular Weight | 350.34 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 |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Marbofloxacin Standards
- Marbofloxacin EP Impurity C (CAS 100276-37-7)
- Marbofloxacin (CAS 115550-35-1)
- Marbofloxacin-d8 (CAS 1185053-37-5)
- Marbofloxacin Impurity 10 (CAS CATO-C4X-180010)
- Marbofloxacin EP Impurity F (CAS 194023-72-8)
- Marbofloxacin EP Impurity E (CAS 2249835-04-7)
- Marbofloxacin EP Impurity B (CAS 115551-41-2)
- Marbofloxacin Impurity 9 (CAS 100276-67-3)
Recommended Standards
- Triethyl 3,3',3''-phosphoryltripropanoate (CAS 4115-99-5)
- PSB 1115 (CAS 152529-79-8)
- Methyl 3-{[2-(methylsulfanyl)-6-(trifluoromethyl)pyrimidin-4-yl]oxy}thiophene-2-carboxylate (CAS 477855-99-5)
- N-(3-nitrophenyl)-N-tosylglycine (CAS 16470-61-4)
- Sulindac Impurity 7 (CAS 37794-19-7)
- Acyclovir Impurity 20 (CAS 111-55-7)
- Trazodone EP Impurity G (CAS 2470436-00-9)
- O,O-Diethyl S-(2-oxotetrahydrofuran-3-yl) phosphorodithioate (CAS 3659-04-9)
- 3-(4-Nitrophenyl)oxetane (CAS 184682-45-9)
- 2-(Methylsulfanyl)-n-[4-(pyridin-2-yl)-1,3-thiazol-2-yl]benzamide (CAS 851289-23-1)
- 1-(2-Methyl-2H-indazol-5-yl)thiourea (CAS 691872-01-2)
- 2-(4-Chlorophenyl)azetidine (CAS 566197-98-6)
- Ethyl 2-(5-(pyrrolidin-1-yl)-2H-tetrazol-2-yl)acetate (CAS 175205-06-8)
- (10-31)Semaglutide (CAS CATO-C4X-2226283)
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