Floxuridine Impurity 4 CAS 69123-97-3
| CAS No. | 69123-97-3 |
| Molecular Formula | C9H10BrFN2O5 |
| Molecular Weight | 325.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Floxuridine Impurity 4 (CAS 69123-97-3), molecular formula C9H10BrFN2O5 and molecular weight 325.09 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H10BrFN2O5, Floxuridine Impurity 4 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 325.09 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Floxuridine Impurity 4 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 | C9H10BrFN2O5 |
| Molecular Weight | 325.09 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
Related Floxuridine Standards
Recommended Standards
- 5-Bromo-2-deoxy-2-fluorouridine (CAS 55612-18-5)
- 4-Bromo-3,3,4,4-tetrafluorobutyl butyl carbonate (CAS 1923065-51-3)
- 5-Bromo-1-((2R,3S,4S,5R)-4-fluoro-3-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (CAS 439579-22-3)
- 2-Iodo-3-(1H-pyrrole-1-carbonyl)benzaldehyde (CAS 921620-78-2)
- 1-Ethyl-2-methyl-1H-benzo[d]imidazol-5-ol (CAS 82612-27-9)
- 5-Methyl-2-(4-(trifluoromethyl)phenyl)-1H-benzo[d]imidazole (CAS 859732-45-9)
- 5-(Ethylamino)-1H-imidazo[4,5-b]pyrazin-2(3H)-one (CAS 27523-76-8)
- Choline-d13 Chloride (N,N,N-trimethyl-d9; 1,1,2,2-d4) (CAS 352438-97-2)
- 7-Chloro-1H-indol-5-amine (CAS 196205-10-4)
- 4-Amino-n-(cyclopropylmethyl)benzene-1-sulfonamide (CAS 477723-17-4)
- 4-Anisaldehyde-13C6 (CAS 1189441-55-1)
- (2-Chloro-6-fluorobenzyl)hydrazine dihydrochloride (CAS 1185299-08-4)
- 4-(Chloromethyl)-2-methyl-1H-imidazole-5-carboxylic acid (CAS 857939-27-6)
- [14-31]-Semaglutide (CAS CATO-C4X-2226262)
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