5-Fluorouracil-13C,15N2 CAS 1189423-58-2
| CAS No. | 1189423-58-2 |
| Molecular Formula | C3[13C]H3F[15N]2O2 |
| Molecular Weight | 133.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Fluorouracil-13C,15N2 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.
5-Fluorouracil-13C,15N2 (CAS 1189423-58-2), molecular formula C3[13C]H3F[15N]2O2 and molecular weight 133.06 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C3[13C]H3F[15N]2O2, 5-Fluorouracil-13C,15N2 contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 133.06 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C3[13C]H3F[15N]2O2 |
| Molecular Weight | 133.06 g/mol |
| Purity | >95% |
| 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.) | 1989 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Fluorouracil Standards
- 5-Fluorouracil-15N2 (CAS 68941-95-7)
- 5-Fluorouracil-6-d1 (CAS 90344-84-6)
- 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)
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