| CAS No. | 1286893-94-4 |
| Molecular Formula | - |
| Molecular Weight | 294.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 294.32 g/mol gives 1-Methyl-5-nitro-1H-benzimidazole-2-butanoic Acid Ethyl Ester-d3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-Methyl-5-nitro-1H-benzimidazole-2-butanoic Acid Ethyl Ester-d3 (CAS 1286893-94-4), molecular formula C14H14D3N3O4 and molecular weight 294.32 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H14D3N3O4, 1-Methyl-5-nitro-1H-benzimidazole-2-butanoic Acid Ethyl Ester-d3 contains deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 294.32 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
| Molecular Formula | C14H14D3N3O4 |
| Molecular Weight | 294.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |