1-(3-chloro-4-methoxyphenyl)-5-ethyl-1H-1,2,3-triazole-4-carboxylic acid CAS 1267764-41-9
| CAS No. | 1267764-41-9 |
| Molecular Formula | C12H12ClN3O3 |
| Molecular Weight | 281.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(3-chloro-4-methoxyphenyl)-5-ethyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1267764-41-9) is a high-purity analytical reference standard with the molecular formula C12H12ClN3O3 and a molecular weight of 281.69 g/mol.
1-(3-chloro-4-methoxyphenyl)-5-ethyl-1H-1,2,3-triazole-4-carboxylic acid (C12H12ClN3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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-(3-chloro-4-methoxyphenyl)-5-ethyl-1H-1,2,3-triazole-4-carboxylic acid 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 | C12H12ClN3O3 |
| Molecular Weight | 281.69 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related chloro Standards
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Recommended Standards
- 1142199-09-4 (4E)-3-(Chloromethyl)-4-(3,4-dimethoxybenzylidene)isoxazol-5(4H)-one MFCD12027789 (CAS 1142199-09-4)
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- 1142199-04-9 (4E)-3-(Chloromethyl)-4-(2,4-dimethoxybenzylidene)isoxazol-5(4H)-one MFCD12027787 (CAS 1142199-04-9)
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