| CAS No. | 193804-98-7 |
| Molecular Formula | C5H5ClN2O |
| Molecular Weight | 144.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 4-Chloro-1-methyl-1h-imidazole-5-carbaldehyde is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 144.56 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).
4-Chloro-1-methyl-1h-imidazole-5-carbaldehyde (CAS 193804-98-7) is a high-purity analytical reference standard with the molecular formula C5H5ClN2O and a molecular weight of 144.56 g/mol.
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 | C5H5ClN2O |
| Molecular Weight | 144.56 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2012 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |