5-Fluorouracil-15N2 CAS 68941-95-7
| CAS No. | 68941-95-7 |
| Molecular Formula | C4H3F[15N]2O2 |
| Molecular Weight | 132.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 132.06 g/mol gives 5-Fluorouracil-15N2 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5-Fluorouracil-15N2 (CAS 68941-95-7), a certified reference material (molecular formula C4H3F[15N]2O2, MW 132.06 g/mol) for analytical method development and quality control.
5-Fluorouracil-15N2 (C4H3F[15N]2O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C4H3F[15N]2O2 |
| Molecular Weight | 132.06 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Fluorouracil Standards
- 5-Fluorouracil-6-d1 (CAS 90344-84-6)
- 5-Fluorouracil-13C,15N2 (CAS 1189423-58-2)
- Fluorouracil EP Impurity A (CAS 67-52-7)
- Fluorouracil Impurity 18 (CAS 25902-86-7)
- Fluorouracil EP Impurity D (CAS 6623-81-0)
- Fluorouracil Impurity 22 (CAS CATO-C4X-164922)
- Fluorouracil Impurity 30 (CAS CATO-C4X-164930)
- Fluorouracil Impurity 3 (CAS 4840-69-1)
Recommended Standards
- 1,2,2,2-Tetrafluoroethyl methyl ether (CAS 50285-05-7)
- 2,2,3,3-Tetrafluoro-1-propanol (CAS 76-37-9)
- 1,1,2,2-Tetrafluoro-1-methoxyethane (CAS 425-88-7)
- (±)-trans-Epoxysuccinic Acid (CAS 141-36-6)
- tert-Butyl (2-ethoxycyclopropyl)carbamate (CAS 1803606-62-3)
- Cyclohexanone-4-carboxaldehyde (CAS 96184-81-5)
- 1-(1-Hydroxy-2,4,5-trimethyl-1H-pyrrol-3-yl)ethanone (CAS 131527-58-7)
- N-(4-(5-Cyano-1-methyl-1H-pyrrol-2-yl)phenyl)benzamide (CAS 921631-45-0)
- 4-Bromo-7-methyl-1H-benzo[d][1,2,3]triazole (CAS 1388070-71-0)
- (5-(Bromomethyl)-2-fluorophenyl)methanamine (CAS 771573-10-5)
- (E)-N'-((2-chlorothiazol-5-yl)methylene)-4-((3,4-dichlorobenzyl)oxy)benzohydrazide (CAS 320423-47-0)
- [(2-methylprop-2-en-1-yl)oxy]benzene (CAS 5820-22-4)
- 2-(4-Chloro-1H-pyrazol-1-yl)acetamide (CAS 1006506-31-5)
- Liraglutide(8-31)TFA Salt (CAS CATO-C4X-19922)
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