| CAS No. | 33342-83-5 |
| Molecular Formula | C5H6N2O |
| Molecular Weight | 110.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Owing to an amide group, a hydroxyl group, an ether linkage, 6-Methylpyrimidine 1-oxide is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 110.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
6-Methylpyrimidine 1-oxide (CAS 33342-83-5) is a high-purity analytical reference standard with the molecular formula C5H6N2O and a molecular weight of 110.11 g/mol.
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.
As a certified reference material (CRM), 6-Methylpyrimidine 1-oxide 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.
| Molecular Formula | C5H6N2O |
| Molecular Weight | 110.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 2 |