2-chloro-1-(2-methyl-2H-1,2,3-triazol-4-yl)ethan-1-one CAS 1803587-87-2
| CAS No. | 1803587-87-2 |
| Molecular Formula | C5H6ClN3O |
| Molecular Weight | 159.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-chloro-1-(2-methyl-2H-1,2,3-triazol-4-yl)ethan-1-one (CAS 1803587-87-2) is a high-purity analytical reference standard with the molecular formula C5H6ClN3O and a molecular weight of 159.57 g/mol.
The molecular framework of 2-chloro-1-(2-methyl-2H-1,2,3-triazol-4-yl)ethan-1-one (C5H6ClN3O) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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 2-chloro-1-(2-methyl-2H-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.
Physical & Chemical Properties
| Molecular Formula | C5H6ClN3O |
| Molecular Weight | 159.57 g/mol |
| Appearance | Off-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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 2-chloro-1-(1-methyl-1H-1,2,3-triazol-5-yl)ethan-1-one (CAS 1803587-33-8)
- 2-Chloro-5-(hydroxymethyl)pyridin-4-ol (CAS 1807171-72-7)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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