1-[2-(2-Chloro-ethoxy)-ethyl]-3,5-dimethyl-1H-pyrazole CAS 108223-78-5
| CAS No. | 108223-78-5 |
| Molecular Formula | C9H15ClN2O |
| Molecular Weight | 202.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-[2-(2-Chloro-ethoxy)-ethyl]-3,5-dimethyl-1H-pyrazole (CAS 108223-78-5), molecular formula C9H15ClN2O and molecular weight 202.68 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H15ClN2O, 1-[2-(2-Chloro-ethoxy)-ethyl]-3,5-dimethyl-1H-pyrazole contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 202.68 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C9H15ClN2O |
| Molecular Weight | 202.68 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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