| CAS No. | 33821-38-4 |
| Molecular Formula | C11H10ClN3O |
| Molecular Weight | 235.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 235.67 g/mol gives 1-[1-(4-chlorophenyl)-5-methyl-1H-1,2,3-triazol-4-yl]ethan-1-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-[1-(4-chlorophenyl)-5-methyl-1H-1,2,3-triazol-4-yl]ethan-1-one (CAS 33821-38-4) is a high-purity analytical reference standard with the molecular formula C11H10ClN3O and a molecular weight of 235.67 g/mol.
The molecular framework of 1-[1-(4-chlorophenyl)-5-methyl-1H-1,2,3-triazol-4-yl]ethan-1-one (C11H10ClN3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
CATO manufactures 1-[1-(4-chlorophenyl)-5-methyl-1H-1,2,3-triazol-4-yl]ethan-1-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C11H10ClN3O |
| Molecular Weight | 235.67 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |