5-DFUR-D2 (Doxifluridine-D2) CAS 84258-25-3
| CAS No. | 84258-25-3 |
| Molecular Formula | - |
| Molecular Weight | 248.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| 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.
5-DFUR-D2 (Doxifluridine-D2) (CAS 84258-25-3), molecular formula C9H9D2FN2O5 and molecular weight 248.20 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-DFUR-D2 (Doxifluridine-D2) (C9H9D2FN2O5) contains deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 248.20 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H9D2FN2O5 |
| Molecular Weight | 248.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- 4-Methoxy-3-((2,2,2-trifluoroethoxy)methyl)benzaldehyde (CAS 834913-89-2)
- Benzyl (R)-3,3,3-trifluoro-2-hydroxy-2-methylpropanoate (CAS 250149-33-8)
- 4-Isopropoxy-3-trifluoromethylbenzoic acid (CAS 213598-16-4)
- Benzyl (S)-3,3,3-trifluoro-2-hydroxy-2-methylpropanoate (CAS 226415-70-9)
- 2-Bromo-4-fluoro-1-propoxybenzene (CAS 1016889-72-7)
- 2-Amino-5-pyrimidinecarbonitrile (CAS 1753-48-6)
- Ethyl 2-(4-(4-chlorophenyl)-2,4-dimethyl-3,4-dihydroquinolin-1(2H)-yl)-2-oxoacetate (CAS 1374509-57-5)
- Procaterol Impurity 13 (CAS CATO-C4X-181013)
- 2-(Pyrrolidin-3-yloxy)-5-(trifluoromethyl)pyridine hydrochloride (CAS 1220016-29-4)
- 1-Benzoyl-5-methyl-2-phenyl-1H-pyrazol-3(2H)-one (CAS 67307-54-4)
- 2-Chloro-4-(methylsulfonyl)pyridine (CAS 99903-03-4)
- 1-Bromo-5-chloro-2-methoxy-4-methylbenzene (CAS 90004-78-7)
- 2-Methyl-5-trifluoromethoxyaniline (CAS 933674-93-2)
- Tirzepatide Impurity 11 TFA salt (CAS CATO-C4X-324011)
Why CATO?
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