| CAS No. | 6237-99-6 |
| Molecular Formula | C6H7N3O4 |
| Molecular Weight | 185.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 185.14 g/mol gives 2-Ethyl-6-hydroxy-5-nitropyrimidin-4(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Ethyl-6-hydroxy-5-nitropyrimidin-4(3H)-one (CAS 6237-99-6) is a high-purity analytical reference standard with the molecular formula C6H7N3O4 and a molecular weight of 185.14 g/mol.
Based on its molecular formula C6H7N3O4, 2-Ethyl-6-hydroxy-5-nitropyrimidin-4(3H)-one contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 185.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H7N3O4 |
| Molecular Weight | 185.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |